{"id":18368,"date":"2025-07-06T07:00:05","date_gmt":"2025-07-06T00:00:05","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=18368"},"modified":"2025-07-06T07:00:05","modified_gmt":"2025-07-06T00:00:05","slug":"tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/","title":{"rendered":"T\u1ea5t t\u1ea7n t\u1eadt ki\u1ebfn th\u1ee9c v\u1ec1 h\u00ecnh vu\u00f4ng trong to\u00e1n h\u1ecdc \u0111\u1ea7y \u0111\u1ee7 nh\u1ea5t"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/#Quang_truong_la_gi\" >Qu\u1ea3ng tr\u01b0\u1eddng l\u00e0 g\u00ec?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/#Cac_dac_diem_cua_hinh_vuong_la_gi\" >C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a h\u00ecnh vu\u00f4ng l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/#Tai_san_cua_Square_la_gi\" >T\u00e0i s\u1ea3n c\u1ee7a Square l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/#Dau_hieu_vuong_la_gi\" >D\u1ea5u hi\u1ec7u vu\u00f4ng l\u00e0 g\u00ec?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/#Mot_so_loai_bai_tap_vuong_pho_bien\" >M\u1ed9t s\u1ed1 lo\u1ea1i b\u00e0i t\u1eadp vu\u00f4ng ph\u1ed5 bi\u1ebfn<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/#Xac_dinh_hinh_vuong\" >X\u00e1c \u0111\u1ecbnh h\u00ecnh vu\u00f4ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/#Tap_the_duc_theo_dinh_nghia_vuong\" >T\u1eadp th\u1ec3 d\u1ee5c theo \u0111\u1ecbnh ngh\u0129a vu\u00f4ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/#Tap_the_duc_tap_the_khu_vuc_vuong\" >T\u1eadp th\u1ec3 d\u1ee5c t\u1eadp th\u1ec3, khu v\u1ef1c vu\u00f4ng<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/#Kinh_nghiem_giup_tre_hoc_toan_mot_cach_hieu_qua\" >Kinh nghi\u1ec7m gi\u00fap tr\u1ebb h\u1ecdc to\u00e1n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/#Hoc_toan_voi_niem_vui_voi_toan_hoc\" >H\u1ecdc to\u00e1n v\u1edbi ni\u1ec1m vui v\u1edbi to\u00e1n h\u1ecdc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/#Voi_tre_em_de_thanh_thao_kien_%E2%80%8B%E2%80%8Bthuc_co_ban\" >V\u1edbi tr\u1ebb em \u0111\u1ec3 th\u00e0nh th\u1ea1o ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/#Thuc_hanh_thuong_xuyen_la_khong_the_thieu\" >Th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean l\u00e0 kh\u00f4ng th\u1ec3 thi\u1ebfu<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/#Hoc_toan_vuong_thong_qua_thuc_hanh\" >H\u1ecdc to\u00e1n vu\u00f4ng th\u00f4ng qua th\u1ef1c h\u00e0nh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/#Tim_hieu_toan_hoc_vuong_thong_qua_tro_choi\" >T\u00ecm hi\u1ec3u to\u00e1n h\u1ecdc vu\u00f4ng th\u00f4ng qua tr\u00f2 ch\u01a1i<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/#Tap_the_duc_tren_hinh_vuong_de_em_be_cua_ban_luyen_tap\" >T\u1eadp th\u1ec3 d\u1ee5c tr\u00ean h\u00ecnh vu\u00f4ng \u0111\u1ec3 em b\u00e9 c\u1ee7a b\u1ea1n luy\u1ec7n t\u1eadp<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.ckconitsha.com\/vn\/tat-tan-tat-kien-thuc-ve-hinh-vuong-trong-toan-hoc-day-du-nhat\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p>Square l\u00e0 m\u1ed9t trong nh\u1eefng h\u00ecnh h\u1ecdc ph\u1eb3ng c\u01a1 b\u1ea3n trong to\u00e1n h\u1ecdc. Nh\u01b0ng \u0111\u1ed1i v\u1edbi tr\u1ebb em l\u1edbp 1 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh, hi\u1ec3u v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c b\u00e0i t\u1eadp v\u1ec1 h\u00ecnh vu\u00f4ng s\u1ebd kh\u00f4ng \u0111\u01a1n gi\u1ea3n. V\u00ec v\u1eady, \u0111\u1ec3 gi\u00fap h\u1ecd hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 ki\u1ebfn \u200b\u200bth\u1ee9c n\u00e0y, h\u00e3y \u0111\u1ec3 kh\u1ec9 kh\u00e1m ph\u00e1 c\u00e1c chi ti\u1ebft trong b\u00e0i vi\u1ebft sau.<\/p>\n<p>                                                                    <img decoding=\"async\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img_default\/monkey3.png\" alt=\"\"><\/p>\n<p class=\"title\">H\u00e0ng tri\u1ec7u tr\u1ebb em \u0111\u00e3 ph\u00e1t tri\u1ec3n c\u00e1c k\u1ef9 n\u0103ng ng\u00f4n ng\u1eef c\u1ee7a ch\u00fang th\u00f4ng qua c\u00e1c \u1ee9ng d\u1ee5ng h\u1ecdc t\u1eadp c\u1ee7a kh\u1ec9<\/p>\n<p class=\"description\">\u0110\u0103ng k\u00fd ngay \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed v\u1ec1 c\u00e1c s\u1ea3n ph\u1ea9m v\u00e0 tuy\u1ebfn h\u1ecdc h\u1ecdc cho tr\u1ebb em.<\/p>\n<p>                                                                            *Vui l\u00f2ng ki\u1ec3m tra t\u00ean \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a b\u1ea1n *Vui l\u00f2ng ki\u1ec3m tra s\u1ed1 \u0111i\u1ec7n tho\u1ea1i h\u01a1n 2.000 t\u1eeb &amp; 6.000 c\u00e2u ti\u1ebfng Anh \u0111\u1ec3 ph\u00e1t tri\u1ec3n to\u00e0n di\u1ec7n 4 k\u1ef9 n\u0103ng ti\u1ebfng Anh t\u1ed1t &#8211; ti\u1ebfng Anh theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7n \u0111\u1ea1i ph\u00e1t tri\u1ec3n kh\u1ea3 n\u0103ng EQ &amp; Vi\u1ec7t Nam *B\u1ea1n ch\u01b0a ch\u1ecdn b\u1ea5t k\u1ef3 m\u1ee5c n\u00e0o! \u0110\u0103ng k\u00fd t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Quang_truong_la_gi\"><\/span>Qu\u1ea3ng tr\u01b0\u1eddng l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Sau khi n\u1eafm b\u1eaft \u0111\u01b0\u1ee3c c\u00e1c h\u00ecnh \u1ea3nh trong to\u00e1n h\u1ecdc, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng h\u00ecnh vu\u00f4ng l\u00e0 m\u1ed9t h\u00ecnh d\u1ea1ng c\u01a1 b\u1ea3n m\u00e0 h\u1ecd s\u1ebd h\u1ecdc trong su\u1ed1t c\u1ea5p 1 \u0111\u1ebfn trung h\u1ecdc, v\u1edbi nhi\u1ec1u ki\u1ebfn \u200b\u200bth\u1ee9c kh\u00e1c nhau.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/hinh-vuong-1.jpg\" alt=\"\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a h\u00ecnh vu\u00f4ng. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cac_dac_diem_cua_hinh_vuong_la_gi\"><\/span>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a h\u00ecnh vu\u00f4ng l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Trong h\u00ecnh h\u1ecdc ph\u1eb3ng, h\u00ecnh vu\u00f4ng l\u00e0 t\u1ee9 gi\u00e1c \u0111\u1ec1u c\u00f3 4 g\u00f3c ph\u1ea3i ngang c\u00f9ng v\u1edbi 4 c\u1ea1nh b\u1eb1ng nhau.<\/p>\n<p dir=\"ltr\">Tr\u00ean th\u1ef1c t\u1ebf, h\u00ecnh vu\u00f4ng l\u00e0 m\u1ed9t h\u00ecnh d\u1ea1ng \u0111\u1eb7c bi\u1ec7t c\u1ee7a h\u00ecnh ch\u1eef nh\u1eadt khi c\u00f3 2 c\u1ea1nh b\u1eb1ng nhau, ho\u1eb7c c\u0169ng l\u00e0 m\u1ed9t h\u00ecnh thoi v\u1edbi 2 \u0111\u01b0\u1eddng ch\u00e9o b\u1eb1ng nhau.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tai_san_cua_Square_la_gi\"><\/span>T\u00e0i s\u1ea3n c\u1ee7a Square l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">V\u1ec1 c\u01a1 b\u1ea3n, h\u00ecnh vu\u00f4ng c\u00f3 c\u00e1c thu\u1ed9c t\u00ednh \u0111\u1eb7c bi\u1ec7t sau:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Qu\u1ea3ng tr\u01b0\u1eddng c\u00f3 2 c\u1eb7p c\u1ea1nh song song.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Bao g\u1ed3m 4 m\u1eb7t b\u1eb1ng nhau.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Hai \u0111\u01b0\u1eddng ch\u00e9o b\u1eb1ng nhau, giao nhau v\u00e0 vu\u00f4ng g\u00f3c \u1edf \u0111i\u1ec3m gi\u1eefa c\u1ee7a m\u1ed7i d\u00f2ng.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Giao \u0111i\u1ec3m c\u1ee7a hai \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a h\u1ecd l\u00e0 trung t\u00e2m c\u1ee7a v\u00f2ng tr\u00f2n n\u01b0\u1edbc ngo\u00e0i v\u00e0 \u0111\u01b0\u1ee3c ghi.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">S\u1ef1 giao h\u1ee3p c\u1ee7a c\u00e1c \u0111\u01b0\u1eddng trung b\u00ecnh, hai \u0111\u01b0\u1eddng chia v\u00e0 hai \u0111\u01b0\u1eddng ph\u00e2n chia trung b\u00ecnh l\u00e0 ch\u1ed3ng ch\u00e9o \u1edf 1 \u0111i\u1ec3m.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">M\u1ed7i \u0111\u01b0\u1eddng ch\u00e9o s\u1ebd chia h\u00ecnh vu\u00f4ng th\u00e0nh hai di\u1ec7n t\u00edch b\u1eb1ng nhau.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">T\u1ed3n t\u1ea1i m\u1ed9t v\u00f2ng tr\u00f2n n\u1ed9i b\u1ed9 v\u00e0 n\u01b0\u1edbc ngo\u00e0i, c\u0169ng nh\u01b0 trung t\u00e2m c\u1ee7a hai s\u1ef1 tr\u00f9ng h\u1ee3p v\u00e0 l\u00e0 giao \u0111i\u1ec3m c\u1ee7a hai \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a qu\u1ea3ng tr\u01b0\u1eddng.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Qu\u1ea3ng tr\u01b0\u1eddng c\u00f3 t\u1ea5t c\u1ea3 c\u00e1c t\u00ednh ch\u1ea5t c\u1ee7a h\u00ecnh thoi v\u00e0 h\u00ecnh ch\u1eef nh\u1eadt.<\/p>\n<\/li>\n<\/ul>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Dau_hieu_vuong_la_gi\"><\/span>D\u1ea5u hi\u1ec7u vu\u00f4ng l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ed1i v\u1edbi tr\u1ebb em ti\u1ec3u h\u1ecdc, th\u01b0\u1eddng b\u1ed1i r\u1ed1i gi\u1eefa c\u00e1c h\u00ecnh vu\u00f4ng v\u1edbi m\u1ed9t s\u1ed1 h\u00ecnh \u1ea3nh kh\u00e1c nh\u01b0 h\u00ecnh thoi, h\u00ecnh ch\u1eef nh\u1eadt, &#8230; V\u00ec v\u1eady, \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 d\u1ea5u hi\u1ec7u vu\u00f4ng m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 t\u00ecm hi\u1ec3u:<\/p>\n<p dir=\"ltr\">N\u1ebfu m\u1ed9t h\u00ecnh t\u1ee9 gi\u00e1c \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t h\u00ecnh vu\u00f4ng khi n\u00f3 \u0111\u00e1p \u1ee9ng c\u00e1c y\u00eau c\u1ea7u sau:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u00e1c h\u00ecnh ch\u1eef nh\u1eadt v\u1edbi 2 c\u1ea1nh li\u1ec1n k\u1ec1.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u00e1c h\u00ecnh ch\u1eef nh\u1eadt v\u1edbi 2 \u0111\u01b0\u1eddng ch\u00e9o vu\u00f4ng g\u00f3c.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u00e1c h\u00ecnh ch\u1eef nh\u1eadt v\u1edbi m\u1ed9t \u0111\u01b0\u1eddng ch\u00e9o l\u00e0 hai g\u00f3c c\u1ee7a m\u1ed9t g\u00f3c.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u00e1c h\u00ecnh thoi c\u00f3 m\u1ed9t g\u00f3c \u0111\u00fang.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Kim c\u01b0\u01a1ng v\u1edbi 2 \u0111\u01b0\u1eddng ch\u00e9o b\u1eb1ng nhau<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">H\u00ecnh b\u00ecnh h\u00e0nh v\u1edbi 1 g\u00f3c vu\u00f4ng v\u00e0 2 c\u1ea1nh li\u1ec1n k\u1ec1.<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Mot_so_loai_bai_tap_vuong_pho_bien\"><\/span>M\u1ed9t s\u1ed1 lo\u1ea1i b\u00e0i t\u1eadp vu\u00f4ng ph\u1ed5 bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Trong ch\u01b0\u01a1ng tr\u00ecnh nghi\u00ean c\u1ee9u to\u00e1n h\u1ecdc n\u00f3i chung, qu\u1ea3ng tr\u01b0\u1eddng n\u00f3i ri\u00eang, tr\u1ebb em s\u1ebd \u0111\u01b0\u1ee3c l\u00e0m quen v\u00e0 chinh ph\u1ee5c m\u1ed9t s\u1ed1 lo\u1ea1i b\u00e0i t\u1eadp li\u00ean quan nh\u01b0:<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Xac_dinh_hinh_vuong\"><\/span>X\u00e1c \u0111\u1ecbnh h\u00ecnh vu\u00f4ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Trong lo\u1ea1i b\u00e0i t\u1eadp n\u00e0y, v\u1ea5n \u0111\u1ec1 s\u1ebd cung c\u1ea5p m\u1ed9t lo\u1ea1t c\u00e1c h\u00ecnh h\u1ecdc, y\u00eau c\u1ea7u sinh vi\u00ean x\u00e1c \u0111\u1ecbnh nh\u1eefng g\u00ec l\u00e0 h\u00ecnh vu\u00f4ng c\u1ee7a nh\u1eefng con s\u1ed1 \u0111\u00f3.<\/p>\n<p dir=\"ltr\">\u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y, n\u00f3 \u0111\u00f2i h\u1ecfi tr\u1ebb em ph\u1ea3i hi\u1ec3u c\u00e1c d\u1ea5u hi\u1ec7u c\u1ee7a h\u00ecnh vu\u00f4ng, c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng quan s\u00e1t \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh h\u00ecnh d\u1ea1ng \u0111\u00fang theo y\u00eau c\u1ea7u.<\/p>\n<p dir=\"ltr\">V\u00ed d\u1ee5:<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/hinh-vuong-2.jpg\" alt=\"Trong c\u00e1c h\u00ecnh sau, \u0111\u00f3 l\u00e0 h\u00ecnh vu\u00f4ng? (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tap_the_duc_theo_dinh_nghia_vuong\"><\/span>T\u1eadp th\u1ec3 d\u1ee5c theo \u0111\u1ecbnh ngh\u0129a vu\u00f4ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">V\u1edbi nhi\u1ec1u b\u00e0i t\u1eadp l\u1ef1a ch\u1ecdn trong c\u00e1c b\u00e0i ki\u1ec3m tra c\u1ea5p 1, h\u1ecd s\u1ebd th\u01b0\u1eddng th\u1ea5y c\u00e1c b\u00e0i t\u1eadp li\u00ean quan \u0111\u1ebfn l\u00fd thuy\u1ebft vu\u00f4ng. V\u00ec v\u1eady, \u0111\u1ec3 th\u1ef1c hi\u1ec7n b\u00e0i t\u1eadp n\u00e0y \u0111\u00f2i h\u1ecfi tr\u1ebb em ph\u1ea3i hi\u1ec3u c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m v\u00e0 t\u00ednh ch\u1ea5t c\u1ee7a h\u00ecnh \u1ea3nh.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: Ch\u1ecdn c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang trong c\u00e1c c\u00e2u sau:<\/em><\/p>\n<p dir=\"ltr\"><em>A. Trong h\u00ecnh vu\u00f4ng, c\u00f3 hai \u0111\u01b0\u1eddng ch\u00e9o b\u1eb1ng nhau v\u00e0 giao nhau \u1edf \u0111i\u1ec3m gi\u1eefa c\u1ee7a m\u1ed7i d\u00f2ng.<\/em><\/p>\n<p dir=\"ltr\"><em>B. Trong h\u00ecnh vu\u00f4ng c\u00f3 hai \u0111\u01b0\u1eddng ch\u00e9o kh\u00f4ng vu\u00f4ng g\u00f3c v\u1edbi nhau.<\/em><\/p>\n<p dir=\"ltr\"><em>C. Trong h\u00ecnh vu\u00f4ng, hai \u0111\u01b0\u1eddng ch\u00e9o l\u00e0 hai tr\u1ee5c \u0111\u1ed1i x\u1ee9ng c\u1ee7a h\u00ecnh vu\u00f4ng.<\/em><\/p>\n<p dir=\"ltr\"><em>D. Trong h\u00ecnh vu\u00f4ng c\u00f3 hai \u0111\u01b0\u1eddng ch\u00e9o vu\u00f4ng g\u00f3c v\u1edbi nhau v\u00e0 b\u1eb1ng nhau.<\/em><\/p>\n<p dir=\"ltr\"><em>===&gt; C\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang l\u00e0 B<\/em><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tap_the_duc_tap_the_khu_vuc_vuong\"><\/span>T\u1eadp th\u1ec3 d\u1ee5c t\u1eadp th\u1ec3, khu v\u1ef1c vu\u00f4ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u00e2y l\u00e0 h\u00ecnh th\u1ee9c b\u00e0i t\u1eadp ph\u1ed5 bi\u1ebfn nh\u1ea5t, v\u1edbi c\u00e1c v\u1ea5n \u0111\u1ec1 c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao \u0111\u1ec3 sinh vi\u00ean gi\u1ea3i quy\u1ebft. V\u1ec1 c\u01a1 b\u1ea3n, v\u1ea5n \u0111\u1ec1 s\u1ebd cung c\u1ea5p th\u00f4ng tin th\u00f4ng tin v\u1ec1 m\u1ed9t ph\u00eda c\u1ee5 th\u1ec3 \u0111\u1ec3 t\u00ednh chu vi vu\u00f4ng v\u00e0 di\u1ec7n t\u00edch c\u1ee7a h\u00ecnh vu\u00f4ng.<\/p>\n<p dir=\"ltr\">V\u00ec v\u1eady, h\u1ecd c\u1ea7n hi\u1ec3u c\u00f4ng th\u1ee9c chu vi, khu v\u1ef1c c\u1ee7a qu\u1ea3ng tr\u01b0\u1eddng \u0111\u1ec3 c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft b\u00e0i t\u1eadp ch\u00ednh x\u00e1c nh\u1ea5t.<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5: chu vi c\u1ee7a h\u00ecnh vu\u00f4ng c\u00f3 c\u1ea1nh d\u00e0i 7cm<\/em><\/p>\n<p dir=\"ltr\"><em>Gi\u1ea3i ph\u00e1p<\/em><\/p>\n<p dir=\"ltr\"><em>Chu vi c\u1ee7a h\u00ecnh vu\u00f4ng l\u00e0:<\/em><\/p>\n<p dir=\"ltr\"><em>7 x 4 = 28 (cm)<\/em><\/p>\n<p dir=\"ltr\"><em>Tr\u1ea3 l\u1eddi: 28cm<\/em><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Kinh_nghiem_giup_tre_hoc_toan_mot_cach_hieu_qua\"><\/span>Kinh nghi\u1ec7m gi\u00fap tr\u1ebb h\u1ecdc to\u00e1n m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">V\u1ec1 c\u01a1 b\u1ea3n, h\u00ecnh vu\u00f4ng l\u00e0 m\u1ed9t h\u00ecnh \u1ea3nh kh\u00e1 d\u1ec5 nh\u1eadn bi\u1ebft, c\u00f9ng v\u1edbi b\u00e0i t\u1eadp kh\u00f4ng qu\u00e1 kh\u00f3. Nh\u01b0ng \u0111\u1ec3 gi\u00fap h\u1ecd chinh ph\u1ee5c h\u00ecnh th\u1ee9c h\u00ecnh h\u1ecdc n\u00e0y m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3, \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 m\u1eb9o:<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Hoc_toan_voi_niem_vui_voi_toan_hoc\"><\/span>H\u1ecdc to\u00e1n v\u1edbi ni\u1ec1m vui v\u1edbi to\u00e1n h\u1ecdc<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 c\u1ee7a to\u00e1n h\u1ecdc n\u00f3i chung, to\u00e1n h\u1ecdc n\u00f3i ri\u00eang cho con c\u00e1i, n\u1ebfu cha m\u1eb9 kh\u00f4ng c\u00f3 nhi\u1ec1u th\u1eddi gian \u0111\u1ec3 h\u1ecdc v\u1edbi tr\u1ebb em, kh\u00f4ng c\u00f3 kinh nghi\u1ec7m trong vi\u1ec7c d\u1ea1y tr\u1ebb h\u1ecdc, ch\u00fang c\u00f3 th\u1ec3 ch\u1ecdn to\u00e1n h\u1ecdc \u0111\u1ec3 \u0111i c\u00f9ng ch\u00fang.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/hinh-vuong-4a.png\" alt=\"T\u1ea1o m\u1ed9t n\u1ec1n t\u1ea3ng to\u00e1n h\u1ecdc v\u1eefng ch\u1eafc v\u1edbi to\u00e1n h\u1ecdc kh\u1ec9. (\u1ea2nh: Kh\u1ec9)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">\u0110\u00e2y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a to\u00e1n h\u1ecdc ti\u1ebfng Anh l\u00e0 cha m\u1eb9 quan t\u00e2m nh\u1ea5t hi\u1ec7n nay. V\u1edbi \u1ee9ng d\u1ee5ng n\u00e0y, em b\u00e9 c\u1ee7a b\u1ea1n s\u1ebd h\u1ecdc to\u00e1n th\u00f4ng qua nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c nhau t\u1eeb:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">D\u1ea1y h\u1ecdc t\u00edch c\u1ef1c: Gi\u00fap tr\u1ebb hi\u1ec3u g\u1ed1c r\u1ec5 c\u1ee7a c\u00e1c v\u1ea5n \u0111\u1ec1 to\u00e1n h\u1ecdc, ch\u00fang s\u1ebd ch\u1ee7 \u0111\u1ed9ng \u0111\u1eb7t c\u00e2u h\u1ecfi khi h\u1ecdc to\u00e1n, k\u00edch th\u00edch t\u01b0 duy to\u00e1n h\u1ecdc hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">D\u1ea1y qua c\u00e1c tr\u00f2 ch\u01a1i: Tr\u1ebb em s\u1ebd ch\u01a1i v\u00e0 h\u1ecdc nh\u01b0ng hi\u1ec7u qu\u1ea3 th\u00f4ng qua c\u00e1c tr\u00f2 ch\u01a1i t\u01b0\u01a1ng t\u00e1c to\u00e1n h\u1ecdc. \u0110i\u1ec1u n\u00e0y gi\u00fap tr\u1ebb em quan t\u00e2m, t\u1ef1 nguy\u1ec7n h\u1ecdc kh\u00f4ng cha m\u1eb9 \u0111\u1ec3 nh\u1eafc nh\u1edf.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">D\u1ea1y th\u00f4ng qua c\u00e1c b\u00e0i t\u1eadp b\u1ed5 sung: Gi\u00fap tr\u1ebb ph\u00e1t tri\u1ec3n c\u00e1c k\u1ef9 n\u0103ng b\u00e1n \u0111\u1ed9ng v\u00e0 chuy\u1ec3n \u0111\u1ed9ng th\u00f4 th\u00f4ng qua vi\u1ec7c gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 th\u1ef1c t\u1ebf.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">C\u1ee5 th\u1ec3, v\u1edbi Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math c\u0169ng ph\u00e1t tri\u1ec3n n\u1ed9i dung b\u00e0i h\u1ecdc d\u1ef1a tr\u00ean ch\u01b0\u01a1ng tr\u00ecnh gi\u00e1o d\u1ee5c m\u1edbi nh\u1ea5t c\u1ee7a B\u1ed9, bao g\u1ed3m h\u01a1n 60 ch\u1ee7 \u0111\u1ec1 c\u1ee7a 7 b\u00e0i to\u00e1n ch\u00ednh, bao g\u1ed3m c\u1ea3 h\u00ecnh h\u1ecdc. N\u1ed9i dung \u0111\u01b0\u1ee3c chia th\u00e0nh 4 c\u1ea5p \u0111\u1ed9 t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao, ph\u00f9 h\u1ee3p cho tr\u1ebb em \u1edf c\u1ea5p 1 \u0111\u1ec3 cha m\u1eb9 c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng ch\u1ecdn b\u00e0i h\u1ecdc v\u1edbi em b\u00e9.<\/p>\n<p dir=\"ltr\">Ch\u01b0a k\u1ec3, v\u1edbi n\u1ed9i dung gi\u1ea3ng d\u1ea1y ho\u00e0n to\u00e0n b\u1eb1ng ti\u1ebfng Anh, kh\u00f4ng ch\u1ec9 gi\u00fap tr\u1ebb em c\u1ea3i thi\u1ec7n c\u00e1c k\u1ef9 n\u0103ng to\u00e1n h\u1ecdc m\u00e0 c\u00f2n ph\u00e1t tri\u1ec3n ngo\u1ea1i ng\u1eef. N\u1ebfu em b\u00e9 c\u1ee7a b\u1ea1n kh\u00f4ng bi\u1ebft ti\u1ebfng Anh, th\u00ec v\u1edbi h\u00ecnh minh h\u1ecda r\u00f5 r\u00e0ng, \u00e2m thanh s\u1ed1ng \u0111\u1ed9ng, n\u00f3 c\u0169ng c\u00f3 th\u1ec3 hi\u1ec3u v\u00e0 h\u1ecdc d\u1ec5 d\u00e0ng.<\/p>\n<p dir=\"ltr\">T\u1ea3i xu\u1ed1ng Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math cho \u0111i\u1ec7n tho\u1ea1i Android<\/p>\n<p dir=\"ltr\">T\u1ea3i xu\u1ed1ng Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math cho \u0111i\u1ec7n tho\u1ea1i iOS<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Voi_tre_em_de_thanh_thao_kien_%E2%80%8B%E2%80%8Bthuc_co_ban\"><\/span>V\u1edbi tr\u1ebb em \u0111\u1ec3 th\u00e0nh th\u1ea1o ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec3 c\u00f3 th\u1ec3 chinh ph\u1ee5c c\u00e1c h\u00ecnh th\u1ee9c c\u1ee7a c\u00e1c b\u00e0i t\u1eadp vu\u00f4ng khi nghi\u00ean c\u1ee9u c\u1ea5p 1, n\u00f3 \u0111\u00f2i h\u1ecfi tr\u1ebb ph\u1ea3i hi\u1ec3u ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n c\u1ee7a h\u00ecnh n\u00e0y t\u1eeb \u0111\u1ecbnh ngh\u0129a, \u0111\u1eb7c \u0111i\u1ec3m, t\u00ednh ch\u1ea5t, d\u1ea5u hi\u1ec7u nh\u1eadn th\u1ee9c, c\u00f4ng th\u1ee9c chu vi &#8230; ch\u1ec9 khi ch\u00fang hi\u1ec3u v\u00e0 hi\u1ec3u h\u00ecnh \u1ea3nh c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n ch\u00ednh x\u00e1c c\u00e1c b\u00e0i t\u1eadp.<\/p>\n<p dir=\"ltr\">\u0110\u1ec3 tr\u1ebb em n\u1eafm v\u1eefng ki\u1ebfn \u200b\u200bth\u1ee9c n\u00e0y, ch\u00fang r\u1ea5t kh\u00f3 \u0111\u1ec3 hi\u1ec3u nh\u1eefng v\u1ea5n \u0111\u1ec1 m\u00e0 ch\u00fang g\u1eb7p kh\u00f3 kh\u0103n, v\u1edbi con c\u00e1i \u0111\u1ec3 t\u1eadp th\u1ec3 d\u1ee5c th\u01b0\u1eddng xuy\u00ean, h\u1ecdc t\u1eadp trong l\u1edbp c\u1ea7n ph\u1ea3i l\u1eafng nghe gi\u00e1o vi\u00ean, &#8230;<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Thuc_hanh_thuong_xuyen_la_khong_the_thieu\"><\/span>Th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean l\u00e0 kh\u00f4ng th\u1ec3 thi\u1ebfu<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Sau khi n\u1eafm b\u1eaft l\u00fd thuy\u1ebft, h\u1ecd c\u1ea7n th\u1ef1c h\u00e0nh nhi\u1ec1u h\u01a1n \u0111\u1ec3 c\u00f3 th\u1ec3 hi\u1ec3u, nh\u1edb v\u00e0 chinh ph\u1ee5c c\u00e1c b\u00e0i t\u1eadp v\u1ec1 h\u00ecnh vu\u00f4ng hi\u1ec7u qu\u1ea3.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/hinh-vuong-3.jpg\" alt=\"Th\u1ef1c h\u00e0nh nhi\u1ec1u h\u01a1n v\u1edbi em b\u00e9 c\u1ee7a b\u1ea1n \u0111\u1ec3 hi\u1ec3u to\u00e1n h\u1ecdc. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">Vi\u1ec7c th\u1ef1c h\u00e0nh \u1edf \u0111\u00e2y \u0111\u01b0\u1ee3c hi\u1ec3u l\u00e0 cha m\u1eb9 c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c v\u1edbi con c\u00e1i c\u1ee7a h\u1ecd \u0111\u1ec3 l\u00e0m b\u00e0i t\u1eadp v\u1ec1 nh\u00e0 trong s\u00e1ch gi\u00e1o khoa, c\u00e2u h\u1ecfi thi, trong c\u00e1c \u1ee9ng d\u1ee5ng, t\u1ed5 ch\u1ee9c tr\u00f2 ch\u01a1i, gi\u1ea3i c\u00e1c c\u00e2u \u0111\u1ed1, &#8230; v\u00ec v\u1edbi tr\u1ebb em, ch\u00fang th\u01b0\u1eddng gi\u00fap con c\u00e1i h\u1ecd quan t\u00e2m \u0111\u1ebfn vi\u1ec7c h\u1ecdc v\u00e0 ghi nh\u1edb ki\u1ebfn \u200b\u200bth\u1ee9c d\u1ec5 d\u00e0ng h\u01a1n.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Hoc_toan_vuong_thong_qua_thuc_hanh\"><\/span>H\u1ecdc to\u00e1n vu\u00f4ng th\u00f4ng qua th\u1ef1c h\u00e0nh<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec3 gi\u00fap em b\u00e9 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 qu\u1ea3ng tr\u01b0\u1eddng, cha m\u1eb9 c\u00f3 th\u1ec3 l\u1ea5y v\u00ed d\u1ee5 li\u00ean quan \u0111\u1ebfn th\u1ef1c t\u1ebf nh\u01b0 h\u00ecnh \u1ea3nh c\u1ee7a b\u1ea3ng qu\u1ea3ng c\u00e1o, g\u1ea1ch s\u00e0n, h\u00ecnh vu\u00f4ng tr\u00ean b\u00e0n c\u1edd, &#8230; khi \u0111\u01b0a h\u00ecnh \u1ea3nh g\u1ea7n h\u01a1n v\u1edbi th\u1ef1c t\u1ebf h\u01a1n, g\u1ea7n v\u1edbi em b\u00e9 h\u01a1n, tr\u1ebb em s\u1ebd d\u1ec5 d\u00e0ng hi\u1ec3u v\u00e0 nh\u1edb.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tim_hieu_toan_hoc_vuong_thong_qua_tro_choi\"><\/span>T\u00ecm hi\u1ec3u to\u00e1n h\u1ecdc vu\u00f4ng th\u00f4ng qua tr\u00f2 ch\u01a1i<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ed1i v\u1edbi tr\u1ebb em h\u1ecdc c\u1ea5p 1, ch\u00fang th\u01b0\u1eddng s\u1ebd kh\u00e1 vui t\u01b0\u01a1i, v\u00ec v\u1eady cha m\u1eb9 c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng y\u1ebfu t\u1ed1 n\u00e0y \u0111\u1ec3 d\u1ea1y tr\u1ebb h\u1ecdc to\u00e1n th\u00f4ng qua c\u00e1c tr\u00f2 ch\u01a1i m\u00e0 ch\u00fang s\u1ebd c\u1ea3m th\u1ea5y quan t\u00e2m v\u00e0 c\u00f3 \u0111\u01b0\u1ee3c ki\u1ebfn \u200b\u200bth\u1ee9c d\u1ec5 d\u00e0ng h\u01a1n.<\/p>\n<p dir=\"ltr\">T\u1ea1i \u0111\u00e2y, ph\u1ee5 huynh c\u00f3 th\u1ec3 \u0111\u1ea7u t\u01b0 v\u00e0o c\u00e1c b\u1ed9 tr\u00f2 ch\u01a1i h\u00ecnh h\u1ecdc \u0111\u01b0\u1ee3c b\u00e1n tr\u00ean th\u1ecb tr\u01b0\u1eddng, ho\u1eb7c bi\u1ebfn c\u00e1c v\u1eadt ph\u1ea9m vu\u00f4ng trong nh\u00e0 th\u00e0nh m\u1ed9t tr\u00f2 ch\u01a1i, &#8230; \u0111\u1ec3 nghi\u00ean c\u1ee9u v\u00e0 ch\u01a1i hi\u1ec7u qu\u1ea3.<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/hinh-vuong-4.jpg\" alt=\"S\u1eed d\u1ee5ng \u0111\u1ed3 ch\u01a1i h\u00ecnh h\u1ecdc v\u1edbi em b\u00e9 c\u1ee7a b\u1ea1n. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tap_the_duc_tren_hinh_vuong_de_em_be_cua_ban_luyen_tap\"><\/span>T\u1eadp th\u1ec3 d\u1ee5c tr\u00ean h\u00ecnh vu\u00f4ng \u0111\u1ec3 em b\u00e9 c\u1ee7a b\u1ea1n luy\u1ec7n t\u1eadp<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Sau khi n\u1eafm b\u1eaft l\u00fd thuy\u1ebft v\u1ec1 h\u00ecnh vu\u00f4ng, \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp li\u00ean quan \u0111\u1ec3 h\u1ecd c\u00f3 th\u1ec3 th\u1ef1c h\u00e0nh \u0111\u1ec3 n\u1eafm b\u1eaft nhi\u1ec1u ki\u1ebfn \u200b\u200bth\u1ee9c h\u01a1n:<\/p>\n<p dir=\"ltr\"><img decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/hinh-vuong-5.jpg\" alt=\"(Ngu\u1ed3n: T\u00f3m t\u1eaft)\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Ket_luan\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<\/p>\n<p dir=\"ltr\" style=\"line-height: 1.7999999999999998;text-align: justify;margin-top: 12pt;margin-bottom: 12pt\">Tr\u00ean \u0111\u00e2y l\u00e0 m\u1ed9t b\u1ea3n t\u00f3m t\u1eaft ki\u1ebfn \u200b\u200bth\u1ee9c to\u00e1n h\u1ecdc c\u01a1 b\u1ea3n v\u1ec1 h\u00ecnh vu\u00f4ng. N\u00f3i chung, lo\u1ea1i n\u00e0y c\u0169ng kh\u00e1 \u0111\u01a1n gi\u1ea3n, n\u1ebfu cha m\u1eb9 th\u1ef1c h\u00e0nh v\u00e0 \u00e1p d\u1ee5ng nh\u1eefng tr\u1ea3i nghi\u1ec7m tr\u00ean, ch\u00fang s\u1ebd gi\u00fap tr\u1ebb h\u1ecdc to\u00e1n hi\u1ec7u qu\u1ea3 h\u01a1n. \u0110\u1eebng qu\u00ean ch\u1ecdn to\u00e1n kh\u1ec9 \u0111\u1ec3 l\u00e0m cho qu\u00e1 tr\u00ecnh h\u1ecdc to\u00e1n c\u1ee7a em b\u00e9 d\u1ec5 d\u00e0ng h\u01a1n.<\/p>\n<p>                                    Ngu\u1ed3n tham chi\u1ebfu<\/p>\n<p>Qu\u1ea3ng tr\u01b0\u1eddng<\/p>\n<\/p>\n<p>https:\/\/byjus.com\/maths\/square\/<\/p>\n<p>Square &#8211; \u0110\u1ecbnh ngh\u0129a v\u1edbi c\u00e1c v\u00ed d\u1ee5<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"e6O17m9QNS\"><p><a href=\"https:\/\/www.splashlearn.com\/math-vocabulary\/difference-between-square-and-rectangle\/square\/#main\" target=\"_blank\" rel=\"noopener\">Square PQRS<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"&#8220;Square PQRS&#8221; &#8212; SplashLearn\" src=\"https:\/\/www.splashlearn.com\/math-vocabulary\/difference-between-square-and-rectangle\/square\/#main\/embed\/#?secret=hP7SZssKIY#?secret=e6O17m9QNS\" data-secret=\"e6O17m9QNS\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n<p>Qu\u1ea3ng tr\u01b0\u1eddng l\u00e0 g\u00ec?<\/p>\n<\/p>\n<p>https:\/\/www.cuemath.com\/geometry\/square\/<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Square l\u00e0 m\u1ed9t trong nh\u1eefng h\u00ecnh h\u1ecdc ph\u1eb3ng c\u01a1 b\u1ea3n trong to\u00e1n h\u1ecdc. Nh\u01b0ng \u0111\u1ed1i v\u1edbi tr\u1ebb em l\u1edbp 1 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh, hi\u1ec3u v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c b\u00e0i t\u1eadp v\u1ec1 h\u00ecnh vu\u00f4ng s\u1ebd kh\u00f4ng \u0111\u01a1n gi\u1ea3n. V\u00ec v\u1eady, \u0111\u1ec3 gi\u00fap h\u1ecd hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 ki\u1ebfn \u200b\u200bth\u1ee9c n\u00e0y, h\u00e3y \u0111\u1ec3 kh\u1ec9 kh\u00e1m ph\u00e1 c\u00e1c&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-18368","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/18368","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/comments?post=18368"}],"version-history":[{"count":1,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/18368\/revisions"}],"predecessor-version":[{"id":23723,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/18368\/revisions\/23723"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=18368"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=18368"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=18368"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}