{"id":14199,"date":"2025-06-07T03:10:02","date_gmt":"2025-06-06T20:10:02","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=14199"},"modified":"2025-07-04T07:00:45","modified_gmt":"2025-07-04T00:00:45","slug":"cong-thuc-tinh-chu-vi-hinh-thang-vuong-bai-tap-va-ung-dung-thuc-tien","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/cong-thuc-tinh-chu-vi-hinh-thang-vuong-bai-tap-va-ung-dung-thuc-tien\/","title":{"rendered":"C\u00f4ng th\u1ee9c t\u00ednh chu vi h\u00ecnh thang vu\u00f4ng, b\u00e0i t\u1eadp v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c ti\u1ec5n"},"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\/cong-thuc-tinh-chu-vi-hinh-thang-vuong-bai-tap-va-ung-dung-thuc-tien\/#Xem_lai_ly_thuyet_hinh_thang_vuong\" >Xem l\u1ea1i l\u00fd thuy\u1ebft h\u00ecnh thang vu\u00f4ng<\/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\/cong-thuc-tinh-chu-vi-hinh-thang-vuong-bai-tap-va-ung-dung-thuc-tien\/#Hinh_thang_vuong_la_gi\" >H\u00ecnh thang 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\/cong-thuc-tinh-chu-vi-hinh-thang-vuong-bai-tap-va-ung-dung-thuc-tien\/#Tinh_chat_cua_hinh_thang_vuong\" >T\u00ednh ch\u1ea5t c\u1ee7a h\u00ecnh thang vu\u00f4ng<\/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\/cong-thuc-tinh-chu-vi-hinh-thang-vuong-bai-tap-va-ung-dung-thuc-tien\/#Dau_hieu_hinh_thang_vuong\" >D\u1ea5u hi\u1ec7u h\u00ecnh thang 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-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/cong-thuc-tinh-chu-vi-hinh-thang-vuong-bai-tap-va-ung-dung-thuc-tien\/#Cong_thuc_tinh_chu_vi_hinh_thang_vuong\" >C\u00f4ng th\u1ee9c t\u00ednh chu vi h\u00ecnh thang vu\u00f4ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.ckconitsha.com\/vn\/cong-thuc-tinh-chu-vi-hinh-thang-vuong-bai-tap-va-ung-dung-thuc-tien\/#Vi_du_ve_chu_vi_hinh_thang_vuong\" >V\u00ed d\u1ee5 v\u1ec1 chu vi h\u00ecnh thang vu\u00f4ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.ckconitsha.com\/vn\/cong-thuc-tinh-chu-vi-hinh-thang-vuong-bai-tap-va-ung-dung-thuc-tien\/#Ung_dung_thuc_te_cua_chu_vi_hinh_thang_vuong\" >\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a chu vi h\u00ecnh thang vu\u00f4ng<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p>Khi n\u00f3i \u0111\u1ebfn h\u00ecnh h\u1ecdc trong to\u00e1n h\u1ecdc, &#8216;chu vi h\u00ecnh thang vu\u00f4ng&#8217; th\u01b0\u1eddng l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m khi\u1ebfn nhi\u1ec1u ng\u01b0\u1eddi c\u1ea3m th\u1ea5y kh\u00f3 n\u1eafm b\u1eaft. Tuy nhi\u00ean, hi\u1ec3u \u0111\u01b0\u1ee3c c\u00f4ng th\u1ee9c v\u00e0 t\u00ednh to\u00e1n chu vi c\u1ee7a h\u00ecnh thang vu\u00f4ng s\u1ebd gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng gi\u1ea3i quy\u1ebft t\u1ea5t c\u1ea3 c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n chi ti\u1ebft v\u1ec1 c\u00f4ng th\u1ee9c t\u00ednh to\u00e1n chu vi h\u00ecnh thang vu\u00f4ng, c\u00e1ch \u00e1p d\u1ee5ng c\u00f4ng th\u1ee9c v\u00e0o th\u1ef1c t\u1ebf v\u00e0 m\u1ed9t s\u1ed1 v\u00ed d\u1ee5 h\u1eefu \u00edch. H\u00e3y kh\u00e1m ph\u00e1 ngay b\u00e2y gi\u1edd!<\/p>\n<p>                        Xem t\u1ea5t c\u1ea3<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Xem_lai_ly_thuyet_hinh_thang_vuong\"><\/span>Xem l\u1ea1i l\u00fd thuy\u1ebft h\u00ecnh thang vu\u00f4ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Tr\u01b0\u1edbc khi \u0111i v\u00e0o c\u00f4ng th\u1ee9c chu vi h\u00ecnh thang vu\u00f4ng, h\u00e3y xem x\u00e9t l\u00e0 m\u1ed9t s\u1ed1 l\u00fd thuy\u1ebft v\u1ec1 h\u00ecnh thang vu\u00f4ng m\u00e0 h\u1ecdc sinh c\u1ea7n nh\u1edb.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Hinh_thang_vuong_la_gi\"><\/span>H\u00ecnh thang vu\u00f4ng l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">Trapezoid l\u00e0 g\u00ec? H\u00ecnh thang l\u00e0 m\u1ed9t t\u1ee9 gi\u00e1c l\u1ed3i v\u1edbi hai c\u1ea1nh song song. C\u1ee5 th\u1ec3, hai c\u1ea1nh song song n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u00e1y c\u1ee7a h\u00ecnh thang v\u00e0 hai b\u00ean c\u00f2n l\u1ea1i \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 hai c\u1ea1nh. D\u1ef1a tr\u00ean c\u00e1c thu\u1ed9c t\u00ednh c\u1ee7a hai c\u1ea1nh d\u01b0\u1edbi c\u00f9ng, h\u00ecnh thang c\u00f3 c\u00e1c lo\u1ea1i \u0111\u1eb7c bi\u1ec7t, ch\u1eb3ng h\u1ea1n nh\u01b0: <em>H\u00ecnh thang h\u00ecnh thang, h\u00ecnh thang vu\u00f4ng, &#8230;<\/em><\/p>\n<p dir=\"ltr\">H\u00ecnh thang vu\u00f4ng l\u00e0 g\u00ec? H\u00ecnh thang vu\u00f4ng l\u00e0 m\u1ed9t h\u00ecnh t\u1ee9 gi\u00e1c v\u1edbi hai c\u1ea1nh song song (ho\u1eb7c h\u00ecnh thang), v\u00e0 t\u1ed3n t\u1ea1i m\u1ed9t g\u00f3c vu\u00f4ng. \u0110\u1eb7c bi\u1ec7t, ph\u00eda c\u1ee7a g\u00f3c vu\u00f4ng l\u00e0 chi\u1ec1u cao c\u1ee7a h\u00ecnh thang. <em>(Nh\u01b0 th\u1ec3 hi\u1ec7n trong h\u00ecnh minh h\u1ecda)<\/em><\/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\/1-chu-vi-hinh-thang-vuong.png\" alt=\"H\u00ecnh thang vu\u00f4ng. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tinh_chat_cua_hinh_thang_vuong\"><\/span>T\u00ednh ch\u1ea5t c\u1ee7a h\u00ecnh thang vu\u00f4ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">H\u00ecnh thang vu\u00f4ng l\u00e0 m\u1ed9t h\u00ecnh thang \u0111\u1eb7c bi\u1ec7t v\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh ri\u00eang bi\u1ec7t. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 thu\u1ed9c t\u00ednh n\u1ed5i b\u1eadt c\u1ee7a h\u00ecnh thang vu\u00f4ng:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Trong h\u00ecnh thang vu\u00f4ng, hai c\u1ea1nh kh\u00f4ng song song, nh\u01b0ng m\u1ed9t trong hai c\u1ea1nh n\u00e0y vu\u00f4ng g\u00f3c v\u1edbi hai \u0111\u00e1y. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 n\u00f3 t\u1ea1o ra m\u1ed9t g\u00f3c vu\u00f4ng (ho\u1eb7c 90 \u0111\u1ed9) so v\u1edbi c\u1ea1nh d\u01b0\u1edbi.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Chi\u1ec1u cao c\u1ee7a h\u00ecnh thang vu\u00f4ng l\u00e0 m\u1eb7t t\u1ea1o ra m\u1ed9t g\u00f3c vu\u00f4ng v\u1edbi hai \u0111\u00e1y.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">N\u1ebfu ch\u00fang m\u1edf r\u1ed9ng hai c\u1ea1nh c\u1ee7a h\u00ecnh thang vu\u00f4ng, ch\u00fang s\u1ebd giao nhau t\u1ea1i m\u1ed9t \u0111i\u1ec3m. Tuy nhi\u00ean, c\u00e2y th\u00e1nh gi\u00e1 n\u00e0y kh\u00f4ng chia h\u00ecnh thang th\u00e0nh hai h\u00ecnh tam gi\u00e1c c\u1ee7a c\u00f9ng m\u1ed9t khu v\u1ef1c.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Trong h\u00ecnh thang vu\u00f4ng, c\u00f3 \u00edt nh\u1ea5t m\u1ed9t g\u00f3c vu\u00f4ng. Tuy nhi\u00ean, c\u1ea7n l\u01b0u \u00fd r\u1eb1ng kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c g\u00f3c trong h\u00ecnh thang vu\u00f4ng l\u00e0 g\u00f3c vu\u00f4ng.<\/p>\n<\/li>\n<\/ul>\n<table style=\"border-collapse: collapse;width: 100.01%;background-color: #fbeeb8\" border=\"1\">\n<tr>\n<td style=\"width: 98.5932%\">\n<p style=\"text-align: center\">\u0110\u1eebng b\u1ecf l\u1ee1 !!<\/p>\n<p style=\"text-align: center\">Ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n h\u1ecdc b\u1eb1ng ti\u1ebfng Anh, gi\u00fap ph\u00e1t tri\u1ec3n t\u01b0 duy theo c\u00e1ch to\u00e0n di\u1ec7n nh\u1ea5t.<\/p>\n<p style=\"text-align: center\">Nh\u1eadn t\u1ed1i \u0111a 40% \u01b0u \u0111\u00e3i ngay t\u1ea1i \u0111\u00e2y!<img decoding=\"async\" style=\"margin-left: auto;margin-right: auto\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/taimienphiMM.png\" width=\"185\"><\/p>\n<\/td>\n<\/tr>\n<\/table>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Dau_hieu_hinh_thang_vuong\"><\/span>D\u1ea5u hi\u1ec7u h\u00ecnh thang vu\u00f4ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">H\u00ecnh thang vu\u00f4ng l\u00e0 m\u1ed9t h\u00ecnh d\u1ea1ng h\u00ecnh thang \u0111\u1eb7c bi\u1ec7t v\u00e0 d\u1ec5 d\u00e0ng \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh h\u00ecnh thang v\u1edbi c\u00e1c d\u1ea5u hi\u1ec7u sau:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">M\u1ed9t g\u00f3c vu\u00f4ng: h\u00ecnh thang vu\u00f4ng ph\u1ea3i c\u00f3 \u00edt nh\u1ea5t m\u1ed9t b\u00ean \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t g\u00f3c vu\u00f4ng (90 \u0111\u1ed9) v\u1edbi c\u1ea1nh d\u01b0\u1edbi.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Hai m\u1eb7t d\u01b0\u1edbi song song: gi\u1ed1ng nh\u01b0 m\u1ecdi h\u00ecnh thang, h\u00ecnh thang vu\u00f4ng c\u0169ng c\u00f3 hai m\u1eb7t ch\u1ea1y song song v\u1edbi nhau.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">L\u01b0u \u00fd: Trong h\u00ecnh thang vu\u00f4ng, n\u1ebfu b\u1ea1n bi\u1ebft m\u1ed9t g\u00f3c vu\u00f4ng, c\u00e1c g\u00f3c c\u00f2n l\u1ea1i s\u1ebd kh\u00f4ng gi\u1ed1ng nh\u01b0 90 \u0111\u1ed9. N\u1ebfu m\u1ed9t b\u00ean t\u1ea1o ra m\u1ed9t g\u00f3c vu\u00f4ng v\u1edbi c\u1ea3 hai \u0111\u00e1y, h\u00ecnh \u1ea3nh \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 h\u00ecnh thang vu\u00f4ng m\u00e0 l\u00e0 m\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt.<\/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\/2-chu-vi-hinh-thang-vuong.png\" alt=\"D\u1ea5u hi\u1ec7u h\u00ecnh thang vu\u00f4ng. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cong_thuc_tinh_chu_vi_hinh_thang_vuong\"><\/span>C\u00f4ng th\u1ee9c t\u00ednh chu vi h\u00ecnh thang vu\u00f4ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Chu vi c\u1ee7a h\u00ecnh vu\u00f4ng l\u00e0 t\u1ed5ng chi\u1ec1u d\u00e0i c\u1ee7a c\u00e1c c\u1ea1nh c\u1ee7a h\u00ecnh thang vu\u00f4ng.<\/p>\n<p dir=\"ltr\">C\u00f4ng th\u1ee9c t\u00ednh to\u00e1n chu vi h\u00ecnh thang vu\u00f4ng:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">P = A + B + C + D<\/p>\n<p dir=\"ltr\">Trong \u0111\u00f3:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">P l\u00e0 chu vi h\u00ecnh thang vu\u00f4ng.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">A v\u00e0 B l\u00e0 c\u00e1c c\u1ea1nh d\u01b0\u1edbi c\u1ee7a h\u00ecnh thang vu\u00f4ng.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C v\u00e0 D l\u00e0 hai c\u1ea1nh c\u1ee7a h\u00ecnh thang vu\u00f4ng.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">V\u00ed d\u1ee5: ABCD h\u00ecnh thang c\u00f3 AB \/\/ CD, AB = 4cm, CD = 8cm, AD = 5cm, BC = 6cm. T\u00ednh chu vi c\u1ee7a h\u00ecnh thang ABCD.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Ch\u00fang t\u00f4i c\u00f3:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Hai c\u1ea1nh d\u01b0\u1edbi c\u00f9ng l\u00e0 AB = 4cm v\u00e0 CD = 8cm.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Hai c\u1ea1nh l\u00e0 AD = 5cm v\u00e0 BC = 6cm.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Chu vi c\u1ee7a h\u00ecnh thang ABCD l\u00e0:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">P = A + B + C + D = 4 + 8 + 5 + 6 = 23 cm<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Do \u0111\u00f3, ABCD chu vi h\u00ecnh thang vu\u00f4ng l\u00e0 23 cm.<\/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\/3-chu-vi-hinh-thang-vuong.png\" alt=\"C\u00f4ng th\u1ee9c t\u00ednh to\u00e1n chu vi h\u00ecnh thang vu\u00f4ng. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">B\u00ean c\u1ea1nh c\u00f4ng th\u1ee9c t\u00ednh to\u00e1n chu vi h\u00ecnh thang vu\u00f4ng, b\u1ea1n c\u0169ng c\u1ea7n ph\u1ea3i nh\u1edb m\u1ed9t c\u00f4ng th\u1ee9c quan tr\u1ecdng kh\u00e1c kh\u00f4ng k\u00e9m, \u0111\u00f3 l\u00e0 khu v\u1ef1c h\u00ecnh thang vu\u00f4ng. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n<p dir=\"ltr\">Khu v\u1ef1c h\u00ecnh thang vu\u00f4ng l\u00e0 m\u1ed9t n\u1eeda s\u1ea3n ph\u1ea9m c\u1ee7a \u0111\u00e1y v\u00e0 chi\u1ec1u cao.<\/p>\n<p dir=\"ltr\">C\u00f4ng th\u1ee9c t\u00ednh to\u00e1n di\u1ec7n t\u00edch h\u00ecnh thang vu\u00f4ng:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">S = (1\/2) * (a + b) * h<\/p>\n<p dir=\"ltr\">Trong \u0111\u00f3:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">S l\u00e0 khu v\u1ef1c h\u00ecnh thang vu\u00f4ng.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">A v\u00e0 B l\u00e0 c\u00e1c c\u1ea1nh d\u01b0\u1edbi c\u1ee7a h\u00ecnh thang vu\u00f4ng.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">H l\u00e0 chi\u1ec1u cao c\u1ee7a h\u00ecnh thang vu\u00f4ng.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">V\u00ed d\u1ee5: ABCD h\u00ecnh thang c\u00f3 AB \/\/ CD, AB = 4cm, CD = 8cm, AD = 5cm. T\u00ednh di\u1ec7n t\u00edch c\u1ee7a h\u00ecnh thang ABCD.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Ch\u00fang t\u00f4i c\u00f3:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Hai c\u1ea1nh d\u01b0\u1edbi c\u00f9ng l\u00e0 AB = 4cm v\u00e0 CD = 8cm.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Chi\u1ec1u cao c\u1ee7a h\u00ecnh thang l\u00e0 AD = 5cm.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Khu v\u1ef1c c\u1ee7a h\u00ecnh thang ABCD l\u00e0:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">S = (1\/2) * (a + b) * h = (1\/2) * (4 + 8) * 5 = 30 cm2<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Do \u0111\u00f3, ABCD di\u1ec7n t\u00edch h\u00ecnh thang vu\u00f4ng l\u00e0 30 cm2.<\/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\/4-chu-vi-hinh-thang-vuong.png\" alt=\"C\u00f4ng th\u1ee9c t\u00ednh to\u00e1n di\u1ec7n t\u00edch h\u00ecnh thang vu\u00f4ng. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Vi_du_ve_chu_vi_hinh_thang_vuong\"><\/span>V\u00ed d\u1ee5 v\u1ec1 chu vi h\u00ecnh thang vu\u00f4ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 v\u00ed d\u1ee5 v\u1ec1 chu vi h\u00ecnh thang vu\u00f4ng:<\/p>\n<p dir=\"ltr\">B\u00e0i 1: \u0110\u01b0a cho h\u00ecnh thang h\u00ecnh vu\u00f4ng EFGH v\u1edbi ef = 5cm, gh = 10cm, v\u00ed d\u1ee5: 7cm v\u00e0 fh = 6cm. T\u00ednh chu vi c\u1ee7a h\u00ecnh thang Efgh.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Ph\u1ea7n th\u01b0\u1edfng:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Theo c\u00f4ng th\u1ee9c chu vi h\u00ecnh thang vu\u00f4ng, ch\u00fang t\u00f4i c\u00f3:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">P = 5+10+7+6 = 28cm<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Kh\u1ed1i chu vi h\u00ecnh thang vu\u00f4ng l\u00e0 28 cm.<\/p>\n<p dir=\"ltr\">B\u00e0i 2: H\u00ecnh thang h\u00ecnh vu\u00f4ng IJKL c\u00f3 IJ = 9cm, KL = 11cm, IK = 8cm v\u00e0 JL = 7cm. T\u00ednh chu vi h\u00ecnh thang IJKL.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Ph\u1ea7n th\u01b0\u1edfng:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Theo c\u00f4ng th\u1ee9c chu vi h\u00ecnh thang vu\u00f4ng, ch\u00fang t\u00f4i c\u00f3:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">P = 9+11+8+7 = 35cm<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Chu vi h\u00ecnh thang h\u00ecnh vu\u00f4ng IJKL l\u00e0 35 cm.<\/p>\n<p dir=\"ltr\">B\u00e0i 3: H\u00ecnh thang vu\u00f4ng c\u00f3 hai c\u1ea1nh d\u00e0i 12cm v\u00e0 15cm, hai c\u1ea1nh t\u01b0\u01a1ng \u1ee9ng l\u00e0 9cm v\u00e0 10cm. T\u00ednh chu vi c\u1ee7a h\u00ecnh thang.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Ph\u1ea7n th\u01b0\u1edfng:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Theo c\u00f4ng th\u1ee9c chu vi h\u00ecnh thang vu\u00f4ng, ch\u00fang t\u00f4i c\u00f3:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">P = 12+15+9+10 = 46cm<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Chu vi h\u00ecnh thang vu\u00f4ng \u0111\u00f3 l\u00e0 46 cm.<\/p>\n<p dir=\"ltr\">B\u00e0i h\u1ecdc 4: \u0110\u01b0a ra m\u1ed9t h\u00ecnh thang h\u00ecnh vu\u00f4ng MNOP v\u1edbi Mn = 8cm, Op = 9cm, MO = 6cm v\u00e0 NP = 7cm. T\u00ednh chu vi c\u1ee7a h\u00ecnh thang MNOP.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Ph\u1ea7n th\u01b0\u1edfng:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Theo c\u00f4ng th\u1ee9c chu vi h\u00ecnh thang vu\u00f4ng, ch\u00fang t\u00f4i c\u00f3:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">P = 8+9+6+7 = 30cm<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Chu vi h\u00ecnh thang h\u00ecnh vu\u00f4ng MNOP l\u00e0 30 cm.<\/p>\n<p dir=\"ltr\">B\u00e0i 5: H\u00ecnh thang vu\u00f4ng c\u00f3 hai c\u1ea1nh d\u01b0\u1edbi c\u00f9ng l\u00e0 6cm v\u00e0 7cm, hai b\u00ean d\u00e0i 4cm v\u00e0 5cm. T\u00ednh chu vi c\u1ee7a h\u00ecnh thang.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Ph\u1ea7n th\u01b0\u1edfng:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Theo c\u00f4ng th\u1ee9c chu vi h\u00ecnh thang vu\u00f4ng, ch\u00fang t\u00f4i c\u00f3:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">P = 6+7+4+5 = 22cm<\/p>\n<p dir=\"ltr\" style=\"text-align: center\">Chu vi h\u00ecnh thang vu\u00f4ng l\u00e0 22 cm.<\/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\/5-chu-vi-hinh-thang-vuong.png\" alt=\"B\u00e0i t\u1eadp v\u1ec1 chu vi h\u00ecnh thang vu\u00f4ng. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">Ngo\u00e0i ra, c\u00f3 nhi\u1ec1u v\u00ed d\u1ee5 kh\u00e1c v\u1ec1 chu vi h\u00ecnh thang vu\u00f4ng. \u0110\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp n\u00e0y, c\u1ea7n ph\u1ea3i th\u00e0nh th\u1ea1o c\u00f4ng th\u1ee9c t\u00ednh to\u00e1n chu vi h\u00ecnh thang vu\u00f4ng v\u00e0 \u00e1p d\u1ee5ng linh ho\u1ea1t cho t\u1eebng v\u1ea5n \u0111\u1ec1 c\u1ee5 th\u1ec3.<\/p>\n<p dir=\"ltr\">Xem th\u00eam:<\/p>\n<ol>\n<li dir=\"ltr\">Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math &#8211; \u1ee8ng d\u1ee5ng to\u00e1n h\u1ecdc b\u1eb1ng ti\u1ebfng Anh s\u1ed1 1 cho tr\u1ebb m\u1eabu gi\u00e1o &amp; tr\u01b0\u1eddng ti\u1ec3u h\u1ecdc<\/li>\n<li dir=\"ltr\">H\u00ecnh thang vu\u00f4ng: Kh\u00e1i ni\u1ec7m, Thu\u1ed9c t\u00ednh, D\u1ea5u hi\u1ec7u nh\u1eadn d\u1ea1ng &amp; C\u00f4ng th\u1ee9c t\u00ednh to\u00e1n<\/li>\n<li dir=\"ltr\">C\u00f4ng th\u1ee9c t\u00ednh to\u00e1n chu vi vu\u00f4ng v\u00e0 b\u00e0i t\u1eadp chi ti\u1ebft<\/li>\n<\/ol>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Ung_dung_thuc_te_cua_chu_vi_hinh_thang_vuong\"><\/span>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a chu vi h\u00ecnh thang vu\u00f4ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Chu vi h\u00ecnh thang vu\u00f4ng l\u00e0 m\u1ed9t trong nh\u1eefng ki\u1ebfn \u200b\u200bth\u1ee9c to\u00e1n h\u1ecdc c\u01a1 b\u1ea3n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong th\u1ef1c t\u1ebf. M\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a chu vi h\u00ecnh thang vu\u00f4ng bao g\u1ed3m:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Trong x\u00e2y d\u1ef1ng: Chu vi h\u00ecnh thang vu\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00ednh to\u00e1n l\u01b0\u1ee3ng v\u1eadt li\u1ec7u c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c c\u00f4ng tr\u00ecnh v\u1edbi h\u00ecnh d\u1ea1ng h\u00ecnh thang vu\u00f4ng, nh\u01b0 c\u1ea7u thang, m\u00e1i nh\u00e0 ho\u1eb7c c\u00e1c c\u00f4ng tr\u00ecnh d\u00e2n s\u1ef1 kh\u00e1c.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\" style=\"padding-left: 40px\">V\u00ed d\u1ee5, \u0111\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t c\u1ea7u thang vu\u00f4ng, ng\u01b0\u1eddi ta c\u1ea7n t\u00ednh to\u00e1n l\u01b0\u1ee3ng v\u1eadt li\u1ec7u c\u1ea7n thi\u1ebft \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u1ea7u thang, tay v\u1ecbn v\u00e0 lan can. \u0110\u1ec3 t\u00ednh to\u00e1n l\u01b0\u1ee3ng v\u1eadt li\u1ec7u c\u1ea7n thi\u1ebft, ng\u01b0\u1eddi ta c\u1ea7n bi\u1ebft chu vi c\u1ee7a h\u00ecnh thang vu\u00f4ng.<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Trong thi\u1ebft k\u1ebf: Chu vi h\u00ecnh thang vu\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c v\u1eadt d\u1ee5ng, c\u00e1c v\u1eadt ph\u1ea9m c\u00f3 h\u00ecnh h\u00ecnh thang vu\u00f4ng, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u00e0n v\u00e0 gh\u1ebf, gi\u01b0\u1eddng ho\u1eb7c \u0111\u1ed3 n\u1ed9i th\u1ea5t kh\u00e1c.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\" style=\"padding-left: 40px\">V\u00ed d\u1ee5, \u0111\u1ec3 thi\u1ebft k\u1ebf m\u1ed9t h\u00ecnh thang vu\u00f4ng, ng\u01b0\u1eddi ta c\u1ea7n t\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc c\u1ee7a b\u1ea3ng, ch\u00e2n b\u00e0n v\u00e0 c\u00e1c thanh ngang. \u0110\u1ec3 t\u00ednh to\u00e1n k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn n\u00e0y, ng\u01b0\u1eddi ta c\u1ea7n bi\u1ebft chu vi c\u1ee7a h\u00ecnh thang vu\u00f4ng.<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">Trong \u0111o l\u01b0\u1eddng: Chu vi h\u00ecnh thang vu\u00f4ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o kho\u1ea3ng c\u00e1ch, k\u00edch th\u01b0\u1edbc ho\u1eb7c di\u1ec7n t\u00edch c\u1ee7a c\u00e1c v\u1eadt th\u1ec3 c\u00f3 h\u00ecnh h\u00ecnh thang vu\u00f4ng.<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\" style=\"padding-left: 40px\">V\u00ed d\u1ee5, \u0111\u1ec3 \u0111o chi\u1ec1u d\u00e0i c\u1ee7a h\u00ecnh thang vu\u00f4ng, ng\u01b0\u1eddi ta c\u1ea7n s\u1eed d\u1ee5ng th\u01b0\u1edbc k\u1ebb \u0111\u1ec3 \u0111o chu vi c\u1ee7a m\u00e1i nh\u00e0.<\/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\/6-chu-vi-hinh-thang-vuong.png\" alt=\"\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a chu vi h\u00ecnh thang vu\u00f4ng. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<\/p>\n<p dir=\"ltr\">N\u00f3i t\u00f3m l\u1ea1i, chu vi h\u00ecnh thang vu\u00f4ng l\u00e0 m\u1ed9t ki\u1ebfn \u200b\u200bth\u1ee9c to\u00e1n h\u1ecdc c\u01a1 b\u1ea3n c\u00f3 m\u1ed9t \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong th\u1ef1c t\u1ebf. N\u1eafm v\u1eefng ki\u1ebfn \u200b\u200bth\u1ee9c n\u00e0y, kh\u00f4ng ch\u1ec9 gi\u00fap ch\u00fang t\u00f4i gi\u1ea3i quy\u1ebft c\u00e1c b\u00e0i t\u1eadp trong tr\u01b0\u1eddng m\u00e0 c\u00f2n x\u1eed l\u00fd c\u00e1c v\u1ea5n \u0111\u1ec1 th\u1ef1c t\u1ebf m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n<p>Ngu\u1ed3n: <a href=\"https:\/\/www.ckconitsha.com\/vn\/\">https:\/\/www.ckconitsha.com\/vn\/<\/a> T\u00e1c gi\u1ea3: <a href=\"https:\/\/www.ckconitsha.com\/vn\/author\/nguyenlandung\">Nguy\u1ec5n L\u00e2n d\u0169ng<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Khi n\u00f3i \u0111\u1ebfn h\u00ecnh h\u1ecdc trong to\u00e1n h\u1ecdc, &#8216;chu vi h\u00ecnh thang vu\u00f4ng&#8217; th\u01b0\u1eddng l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m khi\u1ebfn nhi\u1ec1u ng\u01b0\u1eddi c\u1ea3m th\u1ea5y kh\u00f3 n\u1eafm b\u1eaft. Tuy nhi\u00ean, hi\u1ec3u \u0111\u01b0\u1ee3c c\u00f4ng th\u1ee9c v\u00e0 t\u00ednh to\u00e1n chu vi c\u1ee7a h\u00ecnh thang vu\u00f4ng s\u1ebd gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng gi\u1ea3i quy\u1ebft t\u1ea5t c\u1ea3 c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan&#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-14199","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14199","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=14199"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14199\/revisions"}],"predecessor-version":[{"id":17102,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14199\/revisions\/17102"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=14199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=14199"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=14199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}