{"id":14363,"date":"2025-06-08T03:36:26","date_gmt":"2025-06-07T20:36:26","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=14363"},"modified":"2025-07-04T17:40:05","modified_gmt":"2025-07-04T10:40:05","slug":"cong-thuc-tinh-the-tich-hinh-lap-phuong-huong-dan-giai-chi-tiet","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/cong-thuc-tinh-the-tich-hinh-lap-phuong-huong-dan-giai-chi-tiet\/","title":{"rendered":"C\u00f4ng th\u1ee9c t\u00ednh th\u1ec3 t\u00edch h\u00ecnh l\u1eadp ph\u01b0\u01a1ng &amp; h\u01b0\u1edbng d\u1eabn gi\u1ea3i chi ti\u1ebft"},"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-the-tich-hinh-lap-phuong-huong-dan-giai-chi-tiet\/#Cube_la_gi_Khoi_luong_khoi_la_gi\" >Cube l\u00e0 g\u00ec? Kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.ckconitsha.com\/vn\/cong-thuc-tinh-the-tich-hinh-lap-phuong-huong-dan-giai-chi-tiet\/#Cong_thuc_tinh_toan_khoi_luong_khoi\" >C\u00f4ng th\u1ee9c t\u00ednh to\u00e1n kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/cong-thuc-tinh-the-tich-hinh-lap-phuong-huong-dan-giai-chi-tiet\/#Cac_loai_bai_tap_tinh_toan_khoi_luong_khoi_va_phuong_phap_giai_phap\" >C\u00e1c lo\u1ea1i b\u00e0i t\u1eadp t\u00ednh to\u00e1n kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i v\u00e0 ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i ph\u00e1p<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/cong-thuc-tinh-the-tich-hinh-lap-phuong-huong-dan-giai-chi-tiet\/#Tap_the_duc_tinh_toan_khoi_luong_cua_khoi_lap_phuong_duoc_ap_dung\" >T\u1eadp th\u1ec3 d\u1ee5c t\u00ednh to\u00e1n kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng<\/a><\/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-the-tich-hinh-lap-phuong-huong-dan-giai-chi-tiet\/#Kinh_nghiem_trong_viec_chinh_phuc_tinh_toan_lop_hoc_cua_khoi_lap_phuong\" >Kinh nghi\u1ec7m trong vi\u1ec7c chinh ph\u1ee5c t\u00ednh to\u00e1n l\u1edbp h\u1ecdc c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng<\/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\/cong-thuc-tinh-the-tich-hinh-lap-phuong-huong-dan-giai-chi-tiet\/#Tao_su_phan_khich_khi_hoc_toan_hoc_cho_tre_em_voi_toan_hoc_khi\" >T\u1ea1o s\u1ef1 ph\u1ea5n kh\u00edch khi h\u1ecdc to\u00e1n h\u1ecdc cho tr\u1ebb em v\u1edbi to\u00e1n h\u1ecdc kh\u1ec9<\/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\/cong-thuc-tinh-the-tich-hinh-lap-phuong-huong-dan-giai-chi-tiet\/#Kien_thuc_co_ban_ve_khoi_lap_phuong\" >Ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng<\/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\/cong-thuc-tinh-the-tich-hinh-lap-phuong-huong-dan-giai-chi-tiet\/#Thuc_hanh_thuong_xuyen_la_mot_yeu_to_bat_buoc\" >Th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 b\u1eaft bu\u1ed9c<\/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\/cong-thuc-tinh-the-tich-hinh-lap-phuong-huong-dan-giai-chi-tiet\/#Ket_luan\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p>Kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i l\u00e0 m\u1ed9t trong nh\u1eefng h\u00ecnh th\u1ee9c to\u00e1n h\u1ecdc \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng kh\u00f4ng ch\u1ec9 trong to\u00e1n h\u1ecdc m\u00e0 c\u00f2n trong th\u1ef1c t\u1ebf r\u1ea5t nhi\u1ec1u. \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 t\u00ednh to\u00e1n, c\u00f4ng th\u1ee9c t\u00ednh to\u00e1n kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a kh\u1ed1i, n\u1ed9i dung b\u00e0i vi\u1ebft sau \u0111\u00e2y s\u1ebd ph\u00e2n t\u00edch chi ti\u1ebft.<\/p>\n<p>                        Xem t\u1ea5t c\u1ea3<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cube_la_gi_Khoi_luong_khoi_la_gi\"><\/span>Cube l\u00e0 g\u00ec? Kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng, l\u00e0 m\u1ed9t kh\u1ed1i \u0111a di\u1ec7n v\u1edbi 3 chi\u1ec1u bao g\u1ed3m 6 c\u1ea1nh: vu\u00f4ng, 8 \u0111\u1ec9nh, 12 c\u1ea1nh b\u1eb1ng nhau. C\u1ee5 th\u1ec3, m\u1ed7i 3 cu\u1ed9c h\u1ecdp s\u1ebd t\u1ea1o th\u00e0nh 1 \u0111\u1ec9nh v\u00e0 bao g\u1ed3m 4 l\u1ea7n c\u1eaft ch\u00e9o \u1edf 1 \u0111i\u1ec3m. \u0110\u1ed3ng th\u1eddi, kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng l\u00e0 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c \u0111i\u1ec3m b\u00ean trong v\u00e0 c\u00e1c \u0111i\u1ec3m n\u1eb1m tr\u00ean c\u00e1c \u0111\u1ec9nh, c\u1ea1nh v\u00e0 b\u00ean n\u00e0y.<\/p>\n<p dir=\"ltr\">Ngo\u00e0i ra, kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng s\u1ebd l\u00e0 kh\u1ed1i 6 \u0111\u01b0\u1ee3c \u0111\u1eb7t duy nh\u1ea5t, m\u1ed9t trong 5 kh\u1ed1i \u0111a di\u1ec7n v\u1edbi 9 c\u1ea1nh \u0111\u1ed1i x\u1ee9ng. Kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng c\u0169ng l\u00e0 m\u1ed9t h\u00ecnh d\u1ea1ng trang web vu\u00f4ng, c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t h\u1ed9p h\u00ecnh ch\u1eef nh\u1eadt v\u1edbi c\u00e1c c\u1ea1nh b\u1eb1ng nhau ho\u1eb7c h\u00ecnh d\u1ea1ng b\u1ec1 m\u1eb7t h\u00ecnh vu\u00f4ng.<\/p>\n<p dir=\"ltr\"><\/p>\n<p dir=\"ltr\">Kh\u1ed1i l\u01b0\u1ee3ng ch\u00ednh c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng l\u00e0 x\u00e1c \u0111\u1ecbnh s\u1ed1 l\u01b0\u1ee3ng \u0111\u01a1n v\u1ecb chi\u1ebfm ho\u00e0n to\u00e0n b\u1edfi kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng \u0111\u00f3.<\/p>\n<p dir=\"ltr\">Thu\u1ed9c t\u00ednh c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u00f3 8 m\u00e1y bay \u0111\u1ed1i x\u1ee9ng<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u00f3 12 m\u1eb7t b\u1eb1ng nhau, 8 \u0111\u1ec9nh, c\u1ee9 sau 3 b\u00ean g\u1eb7p nhau \u1edf m\u1ed9t \u0111\u1ec9nh<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u00f3 4 ph\u1ea7n ch\u00e9o \u1edf 1 \u0111i\u1ec3m, \u0111\u00f3 l\u00e0 t\u00e2m \u0111\u1ed1i x\u1ee9ng c\u1ee7a kh\u1ed1i.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u0110\u01b0\u1eddng ch\u00e9o c\u1ee7a c\u00e1c c\u1ea1nh c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng \u0111\u1ec1u b\u1eb1ng nhau<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">C\u00e1c \u0111\u01b0\u1eddng ch\u00e9o c\u1ee7a kh\u1ed1i c\u0169ng b\u1eb1ng nhau.<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cong_thuc_tinh_toan_khoi_luong_khoi\"><\/span>C\u00f4ng th\u1ee9c t\u00ednh to\u00e1n kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng c\u1ea1nh c\u1ee7a c\u1ea1nh v\u1edbi c\u1ea1nh v\u00e0 c\u1ea1nh.<\/p>\n<table style=\"border-collapse: collapse;width: 100%\" border=\"1\">\n<tr>\n<td style=\"width: 98.5189%;text-align: center\">C\u00f4ng th\u1ee9c: V = Axaxa<\/td>\n<\/tr>\n<\/table>\n<p dir=\"ltr\">Trong \u0111\u00f3:<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">V: Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">A: chi\u1ec1u d\u00e0i c\u1ea1nh c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">\u0110\u01a1n v\u1ecb \u0111o kh\u1ed1i l\u01b0\u1ee3ng \u0111o: M3 (m\u00e9t kh\u1ed1i)<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">V\u00ed d\u1ee5:<\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5 1: Ch\u00fang t\u00f4i c\u00f3 kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng ABCDEFGH c\u00f3 b\u00ean A = 3 cm. T\u00ednh kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng ABCDEFGH.<\/em><\/p>\n<p dir=\"ltr\"><em>H\u01b0\u1edbng d\u1eabn gi\u1ea3i ph\u00e1p:<\/em><\/p>\n<p dir=\"ltr\"><em>Kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i abcde l\u00e0:<\/em><\/p>\n<p dir=\"ltr\"><em>V (ABCDEFGH) = 3 x 3 x 3 = 27 cm3<\/em><\/p>\n<p dir=\"ltr\"><em>Tr\u1ea3 l\u1eddi: 27cm3<\/em><\/p>\n<p dir=\"ltr\"><em>V\u00ed d\u1ee5 2: Cho m\u1ed9t kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng opqrst v\u1edbi c\u00e1c c\u1ea1nh b\u1eb1ng nhau v\u00e0 7cm. H\u1ecfi kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a kh\u1ed1i opqrst?<\/em><\/p>\n<p dir=\"ltr\"><em>Gi\u1ea3i ph\u00e1p:<\/em><\/p>\n<p dir=\"ltr\"><em>Theo kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng, c\u00e1c c\u1ea1nh b\u1eb1ng nhau, v\u00ec v\u1eady trong h\u00ecnh \u1ea3nh opqrst, ch\u00fang ta c\u00f3 c\u00e1c c\u1ea1nh b\u1eb1ng nhau v\u00e0 b\u1eb1ng a = 7cm.<\/em><\/p>\n<p dir=\"ltr\"><em>Suy lu\u1eadn, v = a \u00d7 a \u00d7 a = 7 \u00d7 7 \u00d7 7 = 343 cm\u00b3<\/em><\/p>\n<p dir=\"ltr\"><em>Tr\u1ea3 l\u1eddi: 343 cm3<\/em><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cac_loai_bai_tap_tinh_toan_khoi_luong_khoi_va_phuong_phap_giai_phap\"><\/span>C\u00e1c lo\u1ea1i b\u00e0i t\u1eadp t\u00ednh to\u00e1n kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i v\u00e0 ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3i ph\u00e1p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ed1i v\u1edbi tr\u1ebb em m\u1edbi h\u1ecdc, ki\u1ebfn \u200b\u200bth\u1ee9c kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i s\u1ebd g\u1eb7p ph\u1ea3i m\u1ed9t s\u1ed1 lo\u1ea1i b\u00e0i t\u1eadp c\u01a1 b\u1ea3n sau \u0111\u00e2y:<\/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\/the-tich-hinh-lap-phuong-2.jpg\" alt=\"D\u1ef1a tr\u00ean c\u00f4ng th\u1ee9c t\u00ednh to\u00e1n kh\u1ed1i l\u01b0\u1ee3ng \u0111\u1ec3 gi\u1ea3i c\u00e1c b\u00e0i t\u1eadp li\u00ean quan. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">M\u1eabu 1: T\u00ednh kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i khi bi\u1ebft \u0111\u1ed9 d\u00e0i<\/p>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: D\u1ef1a tr\u00ean ch\u1ee7 \u0111\u1ec1 ch\u1ec9 ra \u0111\u1ed9 d\u00e0i c\u1ee7a c\u00e1c c\u1ea1nh, \u0111\u1ec3 t\u00ednh to\u00e1n kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng, ch\u00fang t\u00f4i c\u00f3 c\u1ea1nh c\u1ee7a ng\u01b0\u1eddi c\u00f3 c\u1ea1nh v\u00e0 sau \u0111\u00f3 l\u00e0 c\u1ea1nh.<\/p>\n<p dir=\"ltr\">M\u1eabu 2: T\u00ednh kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i khi bi\u1ebft khu v\u1ef1c xung quanh ho\u1eb7c t\u1ed5ng di\u1ec7n t\u00edch<\/p>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: \u0110\u1ea7u ti\u00ean, ch\u00fang ta c\u1ea7n t\u00ednh to\u00e1n di\u1ec7n t\u00edch c\u1ee7a m\u1ed9t b\u00ean tr\u01b0\u1edbc khi t\u00ecm th\u1ea5y \u0111\u1ed9 d\u00e0i c\u1ea1nh t\u01b0\u01a1ng \u1ee9ng. Sau khi nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ed9 d\u00e0i c\u1ea1nh, ch\u00fang t\u00f4i \u00e1p d\u1ee5ng t\u00ednh to\u00e1n \u00e2m l\u01b0\u1ee3ng l\u00e0 M\u1eabu 1.<\/p>\n<p dir=\"ltr\">M\u1eabu 3: T\u00ednh \u0111\u1ed9 d\u00e0i c\u1ea1nh khi bi\u1ebft \u00e2m l\u01b0\u1ee3ng<\/p>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: \u0110\u1ec3 t\u00ecm m\u1ed9t s\u1ed1 AXA kh\u00f4ng x\u00e1c \u0111\u1ecbnh = V, th\u00ec \u0111\u1ed9 d\u00e0i c\u1ea1nh c\u1ee7a h\u00ecnh \u1ea3nh l\u00e0 a.<\/p>\n<p dir=\"ltr\">M\u1eabu 4: So s\u00e1nh \u00e2m l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng v\u1edbi th\u1ec3 t\u00edch h\u00ecnh ch\u1eef nh\u1eadt ho\u1eb7c h\u00ecnh d\u1ea1ng kh\u00e1c<\/p>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: \u00c1p d\u1ee5ng c\u00f4ng th\u1ee9c \u0111\u1ec3 t\u00ednh to\u00e1n kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a m\u1ed7i h\u00ecnh \u1ea3nh v\u00e0 sau \u0111\u00f3 so s\u00e1nh<\/p>\n<p dir=\"ltr\">M\u1eabu 5: To\u00e1n v\u1edbi c\u00e1c t\u1eeb<\/p>\n<p dir=\"ltr\">Gi\u1ea3i ph\u00e1p: \u0110\u1ecdc k\u1ef9 v\u1ea5n \u0111\u1ec1, x\u00e1c \u0111\u1ecbnh h\u00ecnh th\u1ee9c to\u00e1n h\u1ecdc v\u00e0 y\u00eau c\u1ea7u c\u1ee7a v\u1ea5n \u0111\u1ec1 v\u00e0 sau \u0111\u00f3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 \u0111\u00f3.<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tap_the_duc_tinh_toan_khoi_luong_cua_khoi_lap_phuong_duoc_ap_dung\"><\/span>T\u1eadp th\u1ec3 d\u1ee5c t\u00ednh to\u00e1n kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">V\u1edbi ki\u1ebfn \u200b\u200bth\u1ee9c v\u1ec1 kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng, h\u1ecd s\u1ebd h\u1ecdc trong ch\u01b0\u01a1ng tr\u00ecnh to\u00e1n l\u1edbp 5. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp t\u01b0\u01a1ng \u1ee9ng \u0111\u1ec3 h\u1ecd c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng ki\u1ebfn \u200b\u200bth\u1ee9c h\u1ecd \u0111\u00e3 h\u1ecdc \u0111\u1ec3 chinh ph\u1ee5c:<\/p>\n<p dir=\"ltr\">C\u00e2u h\u1ecfi tr\u1eafc nghi\u1ec7m<\/p>\n<p dir=\"ltr\">C\u00e2u 1. \u0110i\u1ec1u n\u00e0o sau \u0111\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 \u0111a gi\u00e1c?<\/p>\n<p dir=\"ltr\">A. l\u0103ng k\u00ednh<\/p>\n<p dir=\"ltr\">B. Kim t\u1ef1 th\u00e1p<\/p>\n<p dir=\"ltr\">C. kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng<\/p>\n<p dir=\"ltr\">D. H\u00ecnh vu\u00f4ng<\/p>\n<p dir=\"ltr\">C\u00e2u 2. C\u00f3 bao nhi\u00eau kh\u1ed1i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh r\u1ea5t nhi\u1ec1u kh\u1ed1i t\u1ee9 di\u1ec7n kh\u1ed1i l\u01b0\u1ee3ng b\u1eb1ng nhau m\u00e0 c\u00e1 c\u1ef1c \u0111\u1ea1i c\u1ee7a t\u1ee9 di\u1ec7n c\u0169ng l\u00e0 \u0111\u1ec9nh c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng?<\/p>\n<p dir=\"ltr\">C\u00e2u 3. Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a kh\u1ed1i l\u00e0 2A b\u1eb1ng<\/p>\n<p dir=\"ltr\">A. 8a^3<\/p>\n<p dir=\"ltr\">B. 2a ^^ 3<\/p>\n<p dir=\"ltr\">Ca^3<\/p>\n<p dir=\"ltr\">D. 6a^3<\/p>\n<p dir=\"ltr\">C\u00e2u 4. \u0110\u1ed1i v\u1edbi m\u1ed9t h\u1ed9p th\u1eb3ng \u0111\u1ee9ng v\u1edbi m\u1ed9t b\u00ean l\u00e0 h\u00ecnh vu\u00f4ng b\u00ean c\u1ea1nh A v\u00e0 m\u1ed9t b\u00ean c\u00f3 di\u1ec7n t\u00edch 3a^2. Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a h\u1ed9p l\u00e0?<\/p>\n<p dir=\"ltr\">A. A^3<\/p>\n<p dir=\"ltr\">B. 3a^3<\/p>\n<p dir=\"ltr\">C.2a^3<\/p>\n<p dir=\"ltr\">D. 4a^3<\/p>\n<p dir=\"ltr\">C\u00e2u 5. Kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng c\u00f3 hai chi\u1ec1u d\u00e0i \u0111\u01b0\u1eddng ch\u00e9o b\u1eb1ng 6, \u00e2m l\u01b0\u1ee3ng l\u00e0?<\/p>\n<p dir=\"ltr\">A. 2 \u221a2<\/p>\n<p dir=\"ltr\">B.54 2<\/p>\n<p dir=\"ltr\">C.24 3<\/p>\n<p dir=\"ltr\">D. 8<\/p>\n<p dir=\"ltr\">C\u00e2u 6. C\u00f3 ph\u1ea3i s\u1ed1 l\u01b0\u1ee3ng c\u1ee7a m\u1ed9t kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng?<\/p>\n<p dir=\"ltr\">A. B\u1ed1n<\/p>\n<p dir=\"ltr\">B. S\u00e1u<\/p>\n<p dir=\"ltr\">C. T\u00e1m<\/p>\n<p dir=\"ltr\">D. Ten<\/p>\n<p dir=\"ltr\">C\u00e2u 7. M\u1eb7t ph\u1eb3ng \u0111\u1ed1i x\u1ee9ng c\u1ee7a kh\u1ed1i?<\/p>\n<p dir=\"ltr\">A. S\u00e1u<\/p>\n<p dir=\"ltr\">B. B\u1ea3y<\/p>\n<p dir=\"ltr\">C. T\u00e1m<\/p>\n<p dir=\"ltr\">D. thi\u00ean nhi\u00ean<\/p>\n<p dir=\"ltr\">C\u00e2u 8. T\u00ednh to\u00e1n th\u1ec3 t\u00edch c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng bi\u1ebft r\u1eb1ng khi chi\u1ec1u d\u00e0i c\u1ea1nh gi\u1ea3m xu\u1ed1ng 2 l\u1ea7n, kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a n\u00f3 gi\u1ea3m 189 m3?<\/p>\n<p dir=\"ltr\">A. 216 m3<\/p>\n<p dir=\"ltr\">B. 8 m3<\/p>\n<p dir=\"ltr\">C. 27 m3<\/p>\n<p dir=\"ltr\">D. 64 m3<\/p>\n<p dir=\"ltr\">C\u00e2u 9. Lo\u1ea1i h\u00ecnh kh\u1ed1i n\u00e0o?<\/p>\n<p dir=\"ltr\">A. {5; 3}<\/p>\n<p dir=\"ltr\">B. {3; 4}<\/p>\n<p dir=\"ltr\">C. {4; 3}<\/p>\n<p dir=\"ltr\">D. {3; 5}<\/p>\n<p dir=\"ltr\">C\u00e2u 10. Kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng c\u00f3 th\u1ec3 t\u00edch 125 m3. T\u00ednh t\u1ed5ng di\u1ec7n t\u00edch c\u1ee7a kh\u1ed1i?<\/p>\n<p dir=\"ltr\">A. 25 m2<\/p>\n<p dir=\"ltr\">B. 125 m2<\/p>\n<p dir=\"ltr\">C. 150 m2<\/p>\n<p dir=\"ltr\">D. 151 m2<\/p>\n<p dir=\"ltr\">C\u00e2u 11.<\/p>\n<p dir=\"ltr\">A. T\u0103ng K l\u1ea7n<\/p>\n<p dir=\"ltr\">B. T\u0103ng K^2 l\u1ea7n<\/p>\n<p dir=\"ltr\">C. T\u0103ng K^3 l\u1ea7n<\/p>\n<p dir=\"ltr\">D. t\u0103ng 3k^3 l\u1ea7n<\/p>\n<p dir=\"ltr\">C\u00e2u 12. N\u1ebfu chi\u1ec1u d\u00e0i c\u1ea1nh c\u1ee7a kh\u1ed1i l\u00e0 4 l\u1ea7n, bao nhi\u00eau l\u1ea7n \u00e2m l\u01b0\u1ee3ng c\u1ee7a n\u00f3 t\u0103ng l\u00ean?<\/p>\n<p dir=\"ltr\">A. 4<\/p>\n<p dir=\"ltr\">B. 16<\/p>\n<p dir=\"ltr\">C. 64<\/p>\n<p dir=\"ltr\">D. 8<\/p>\n<p dir=\"ltr\">C\u00e2u h\u1ecfi b\u00e0i lu\u1eadn<\/p>\n<p dir=\"ltr\">B\u00e0i 1. T\u1ed5ng di\u1ec7n t\u00edch c\u1ee7a c\u00e1c m\u1eb7t c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng l\u00e0 150. Kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i l\u00e0 bao nhi\u00eau?<\/p>\n<p dir=\"ltr\">B\u00e0i 2. T\u1ed5ng di\u1ec7n t\u00edch c\u1ee7a c\u00e1c m\u1eb7t c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng l\u00e0 96 cm2. Kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng l\u00e0 bao nhi\u00eau?<\/p>\n<p dir=\"ltr\">B\u00e0i 3. Kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng b\u1eb1ng 27, t\u1ed5ng di\u1ec7n t\u00edch c\u1ee7a kh\u1ed1i l\u00e0 bao nhi\u00eau?<\/p>\n<p dir=\"ltr\">B\u00e0i 4. Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a kh\u1ed1i abcd.a&#8217;b&#8217;c&#8217;d &#8216;c\u00f3 \u0111\u01b0\u1eddng ch\u00e9o ac&#8217; = m\u1ed9t b\u1eb1ng nhau?<\/p>\n<p dir=\"ltr\">B\u00e0i 5. Kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a kh\u1ed1i abcd.a&#8217;b&#8217;c&#8217;d &#8216;c\u00f3 m\u1ed9t \u0111\u01b0\u1eddng ch\u00e9o B&#8217;d = a \u221a 3?<\/p>\n<p dir=\"ltr\">B\u00e0i 6. T\u00ednh kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a kh\u1ed1i abcd.a&#8217;b&#8217;c&#8217;d &#8216;v\u1edbi \u0111\u01b0\u1eddng ch\u00e9o a&#8217;c = 6 cm?<\/p>\n<p dir=\"ltr\">B\u00e0i 7. Cho h\u1ed9p d\u1ecdc abcd.a&#8217;b&#8217;c&#8217;d &#8216;v\u1edbi ph\u00eda d\u01b0\u1edbi l\u00e0 h\u00ecnh vu\u00f4ng, b\u00ean c\u1ea1nh aa&#8217; = 3a v\u00e0 \u0111\u01b0\u1eddng ch\u00e9o ac &#8216;= 5a. T\u00ednh th\u1ec3 t\u00edch c\u1ee7a kh\u1ed1i h\u1ed9p d\u1ecdc?<\/p>\n<p dir=\"ltr\">B\u00e0i 8. Cho kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng abcd.a&#8217;b&#8217;c&#8217;d &#8216;c\u00f3 di\u1ec7n t\u00edch c\u1ee7a tam gi\u00e1c acd&#8217; v\u1edbi \u221a3a^2. T\u00ednh th\u1ec3 t\u00edch c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng \u0111\u00e3 cho.<\/p>\n<p dir=\"ltr\">B\u00e0i 9. Cho kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng abcd.a&#8217;b&#8217;c&#8217;d &#8216;c\u00f3 di\u1ec7n t\u00edch c\u1ee7a tam gi\u00e1c b&#8217;ac b\u1eb1ng 2 \u221a3a^2. T\u00ednh th\u1ec3 t\u00edch c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng \u0111\u00e3 cho.<\/p>\n<p dir=\"ltr\">B\u00e0i 10. Khi chi\u1ec1u d\u00e0i c\u1ea1nh kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng t\u0103ng 2 cm, kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a n\u00f3 t\u0103ng th\u00eam 98 cm3. T\u00ednh \u0111\u1ed9 d\u00e0i c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng.<\/p>\n<p dir=\"ltr\">Xem th\u00eam: T\u1ea5t c\u1ea3 c\u00e1c h\u00ecnh \u1ea3nh trong to\u00e1n h\u1ecdc c\u01a1 b\u1ea3n ho\u00e0n ch\u1ec9nh nh\u1ea5t<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Kinh_nghiem_trong_viec_chinh_phuc_tinh_toan_lop_hoc_cua_khoi_lap_phuong\"><\/span>Kinh nghi\u1ec7m trong vi\u1ec7c chinh ph\u1ee5c t\u00ednh to\u00e1n l\u1edbp h\u1ecdc c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ec3 gi\u00fap c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 c\u1ee7a to\u00e1n h\u1ecdc n\u00f3i chung, ki\u1ebfn \u200b\u200bth\u1ee9c v\u1ec1 kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i n\u00f3i ri\u00eang, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o m\u1ed9t s\u1ed1 kinh nghi\u1ec7m sau \u0111\u00e2y:<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Tao_su_phan_khich_khi_hoc_toan_hoc_cho_tre_em_voi_toan_hoc_khi\"><\/span>T\u1ea1o s\u1ef1 ph\u1ea5n kh\u00edch khi h\u1ecdc to\u00e1n h\u1ecdc cho tr\u1ebb em v\u1edbi to\u00e1n h\u1ecdc kh\u1ec9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">To\u00e1n h\u1ecdc kh\u00e1 kh\u00f4, \u0111\u1eb7c bi\u1ec7t l\u00e0 to\u00e1n h\u1ecdc. V\u00ec v\u1eady, \u0111\u1ec3 t\u1ea1o ra s\u1ef1 ph\u1ea5n kh\u00edch cho em b\u00e9 c\u1ee7a b\u1ea1n trong qu\u00e1 tr\u00ecnh h\u1ecdc t\u1eadp, ph\u1ee5 huynh c\u00f3 th\u1ec3 tham kh\u1ea3o c\u00e1c c\u00f4ng c\u1ee5 to\u00e1n h\u1ecdc to\u00e1n h\u1ecdc t\u1ea1i Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math. \u0110\u00e2y l\u00e0 vi\u1ec7c \u00e1p d\u1ee5ng to\u00e1n h\u1ecdc t\u1eeb DUY Online cho tr\u1ebb m\u1eabu gi\u00e1o v\u00e0 ti\u1ec3u h\u1ecdc, v\u1edbi n\u1ed9i dung \u0111\u01b0\u1ee3c theo s\u00e1t b\u1edfi ch\u01b0\u01a1ng tr\u00ecnh gi\u00e1o d\u1ee5c m\u1edbi nh\u1ea5t c\u1ee7a B\u1ed9, \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o to\u00e0n b\u1ed9 thi\u1ebft b\u1ecb ki\u1ebfn \u200b\u200bth\u1ee9c cho tr\u1ebb em \u00e1p d\u1ee5ng trong th\u1ef1c t\u1ebf c\u0169ng nh\u01b0 h\u1ed7 tr\u1ee3 h\u1ecdc t\u1eadp \u1edf tr\u01b0\u1eddng t\u1ed1t h\u01a1n.<\/p>\n<p dir=\"ltr\">\u1ede \u0111\u00e2y, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math s\u1ebd \u00e1p d\u1ee5ng nhi\u1ec1u ph\u01b0\u01a1ng ph\u00e1p gi\u1ea3ng d\u1ea1y kh\u00e1c nhau t\u1eeb c\u00e1c ph\u01b0\u01a1ng ph\u00e1p h\u1ecdc t\u1eadp t\u00edch c\u1ef1c, h\u1ecdc th\u00f4ng qua c\u00e1c tr\u00f2 ch\u01a1i, h\u1ecdc th\u00f4ng qua c\u00e1c b\u00e0i t\u1eadp b\u1ed5 sung. C\u00f9ng v\u1edbi n\u1ed9i dung theo s\u00e1t nhi\u1ec1u ch\u1ee7 \u0111\u1ec1, bao g\u1ed3m ki\u1ebfn \u200b\u200bth\u1ee9c h\u00ecnh h\u1ecdc \u0111\u01b0\u1ee3c c\u00e1 nh\u00e2n h\u00f3a cho t\u1eebng \u0111\u1ed1i t\u01b0\u1ee3ng, \u0111\u01b0\u1ee3c chia th\u00e0nh nhi\u1ec1u c\u1ea5p \u0111\u1ed9 \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi kh\u1ea3 n\u0103ng c\u1ee7a tr\u1ebb.<\/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\/the-tich-hinh-lap-phuong-3.jpg\" alt=\"T\u1ea1o s\u1ef1 quan t\u00e2m \u0111\u1ebfn vi\u1ec7c h\u1ecdc to\u00e1n cho tr\u1ebb em v\u1edbi to\u00e1n h\u1ecdc kh\u1ec9. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"100%\"><\/p>\n<p dir=\"ltr\">Ngo\u00e0i ra, Shining Home &#8211; Gia \u0111\u00ecnh Anh Ng\u1eef Math c\u0169ng x\u00e2y d\u1ef1ng n\u1ed9i dung v\u1edbi c\u00e1c h\u00ecnh \u1ea3nh \u0111\u1ed9ng h\u00e0i h\u01b0\u1edbc, \u00e2m thanh s\u1ed1ng \u0111\u1ed9ng \u0111\u1ec3 t\u0103ng kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 v\u00e0 ghi nh\u1edb em b\u00e9 c\u1ee7a b\u1ea1n t\u1ed1t h\u01a1n. C\u00f9ng v\u1edbi nhi\u1ec1u ho\u1ea1t \u0111\u1ed9ng t\u00edch h\u1ee3p, n\u00f3 gi\u00fap t\u1ea1o ra nhi\u1ec1u s\u1ef1 quan t\u00e2m h\u01a1n khi h\u1ecdc to\u00e1n nhi\u1ec1u h\u01a1n l\u00e0 h\u1ecdc tr\u00ean s\u00e1ch th\u00f4ng th\u01b0\u1eddng.<\/p>\n<p dir=\"ltr\">V\u00ec v\u1eady, \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 \u1ee9ng d\u1ee5ng to\u00e1n h\u1ecdc n\u00e0y, ph\u1ee5 huynh c\u00f3 th\u1ec3 tham kh\u1ea3o video sau ho\u1eb7c \u0111\u0103ng k\u00fd \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n t\u1ed1t nh\u1ea5t.<\/p>\n<p dir=\"ltr\" style=\"text-align: center\"> <a href=\"https:\/\/www.youtube.com\/watch?v=7DSJPVHFROS\" target=\"_blank\" rel=\"noopener\">https:\/\/www.youtube.com\/watch?v=7DSJPVHFROS<\/a><\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia.monkeyuni.net\/upload\/web\/img\/nhantuvanmienphi.png\" alt=\"\" width=\"200\" height=\"39\"><\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Kien_thuc_co_ban_ve_khoi_lap_phuong\"><\/span>Ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">\u0110\u1ec3 gi\u1ea3i quy\u1ebft kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a kh\u1ed1i l\u1eadp ph\u01b0\u01a1ng, n\u00f3 \u0111\u00f2i h\u1ecfi tr\u1ebb ph\u1ea3i l\u00e0m ch\u1ee7 ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n c\u01a1 b\u1ea3n v\u1ec1 lo\u1ea1i h\u1ecdc t\u1eadp n\u00e0y t\u1eeb b\u1ea3n ch\u1ea5t, kh\u00e1i ni\u1ec7m v\u00e0 c\u00e1c c\u00f4ng th\u1ee9c li\u00ean quan. V\u1edbi ph\u1ea7n n\u00e0y, y\u00eau c\u1ea7u cha m\u1eb9 ph\u1ea3i h\u01b0\u1edbng d\u1eabn v\u00e0 gi\u1ea3i th\u00edch r\u00f5 r\u00e0ng cho em b\u00e9 hi\u1ec3u v\u00e0 nh\u1edb. \u0110\u1ed3ng th\u1eddi, b\u1ea1n n\u00ean th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra ki\u1ebfn \u200b\u200bth\u1ee9c c\u1ee7a m\u00ecnh \u0111\u1ec3 xem con b\u1ea1n c\u00f3 qu\u00ean ho\u1eb7c b\u1ecb l\u1ec7ch kh\u1ecfi th\u00f4ng tin kh\u00f4ng, \u0111\u1ec3 c\u00f3 m\u1ed9t h\u01b0\u1edbng x\u1eed l\u00fd v\u00e0 h\u1ee3p nh\u1ea5t k\u1ecbp th\u1eddi.<\/p>\n<h3 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Thuc_hanh_thuong_xuyen_la_mot_yeu_to_bat_buoc\"><\/span>Th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 b\u1eaft bu\u1ed9c<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p dir=\"ltr\">M\u1eb7c d\u00f9 t\u00f4i \u0111\u00e3 nh\u1eadn th\u1ee9c \u0111\u01b0\u1ee3c ki\u1ebfn \u200b\u200bth\u1ee9c, n\u1ebfu kh\u00f4ng th\u1ef1c h\u00e0nh, th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean ch\u1eafc ch\u1eafn s\u1ebd qu\u00ean r\u1ea5t nhanh. Do \u0111\u00f3, cha m\u1eb9 n\u00ean h\u1ecfi, khuy\u1ebfn kh\u00edch tr\u1ebb l\u00e0m b\u00e0i t\u1eadp v\u1ec1 nh\u00e0 c\u0169ng nh\u01b0 th\u1ef1c h\u00e0nh tham gia c\u00e1c cu\u1ed9c thi, t\u1ed5 ch\u1ee9c c\u00e1c tr\u00f2 ch\u01a1i to\u00e1n h\u1ecdc &#8230;. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u00e0o t\u1ea1o s\u1ebd k\u00edch th\u00edch n\u00e3o c\u1ee7a con b\u1ea1n, suy ngh\u0129, ghi nh\u1edb v\u00e0 \u00e1p d\u1ee5ng t\u1ed1t 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\/the-tich-hinh-lap-phuong-4.jpg\" alt=\"Th\u1ef1c h\u00e0nh th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 gi\u00fap b\u00e9 c\u1ee7a b\u1ea1n th\u00e0nh th\u1ea1o ki\u1ebfn \u200b\u200bth\u1ee9c. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" 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\">Tr\u00ean \u0111\u00e2y l\u00e0 th\u00f4ng tin v\u1ec1 ki\u1ebfn \u200b\u200bth\u1ee9c c\u01a1 b\u1ea3n l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u00ednh to\u00e1n kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i. \u0110\u00e2y l\u00e0 m\u1ed9t ki\u1ebfn \u200b\u200bth\u1ee9c kh\u00f4ng ch\u1ec9 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong to\u00e1n h\u1ecdc m\u00e0 trong th\u1ef1c ti\u1ec5n \u1ee9ng d\u1ee5ng r\u1ea5t nhi\u1ec1u, v\u00ec v\u1eady cha m\u1eb9 n\u00ean tham kh\u1ea3o th\u00eam th\u00f4ng tin \u0111\u1ec3 h\u01b0\u1edbng d\u1eabn tr\u1ebb h\u1ecdc t\u1ed1t h\u01a1n. \u0110\u1ed3ng th\u1eddi, n\u1ebfu b\u1ea1n kh\u00f4ng c\u00f3 nhi\u1ec1u th\u1eddi gian v\u00e0 kinh nghi\u1ec7m trong vi\u1ec7c d\u1ea1y tr\u1ebb h\u1ecdc to\u00e1n, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o \u1ee9ng d\u1ee5ng to\u00e1n h\u1ecdc kh\u1ec9.<\/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>Kh\u1ed1i l\u01b0\u1ee3ng kh\u1ed1i l\u00e0 m\u1ed9t trong nh\u1eefng h\u00ecnh th\u1ee9c to\u00e1n h\u1ecdc \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng kh\u00f4ng ch\u1ec9 trong to\u00e1n h\u1ecdc m\u00e0 c\u00f2n trong th\u1ef1c t\u1ebf r\u1ea5t nhi\u1ec1u. \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 t\u00ednh to\u00e1n, c\u00f4ng th\u1ee9c t\u00ednh to\u00e1n kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a kh\u1ed1i, n\u1ed9i dung b\u00e0i vi\u1ebft sau \u0111\u00e2y s\u1ebd ph\u00e2n t\u00edch chi ti\u1ebft. Xem t\u1ea5t c\u1ea3&#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-14363","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14363","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=14363"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14363\/revisions"}],"predecessor-version":[{"id":17371,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/14363\/revisions\/17371"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=14363"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=14363"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=14363"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}