{"id":29552,"date":"2023-09-15T23:47:23","date_gmt":"2023-09-15T16:47:23","guid":{"rendered":"https:\/\/ungdung.hotronghiencuu.com\/open\/chu-vi-la-gi"},"modified":"2023-09-15T23:47:23","modified_gmt":"2023-09-15T16:47:23","slug":"chu-vi-la-gi","status":"publish","type":"post","link":"https:\/\/ungdung.hotronghiencuu.com\/open\/chu-vi-la-gi","title":{"rendered":"C\u00e1ch t\u00ednh chu vi c\u00e1c h\u00ecnh h\u1ecdc v\u00e0 nh\u1eefng c\u00f4ng th\u1ee9c quan tr\u1ecdng \u0111\u1ec3 n\u1eafm v\u1eefng"},"content":{"rendered":"<p>Chu vi l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong to\u00e1n h\u1ecdc v\u00e0 h\u00ecnh h\u1ecdc \u0111\u1ec3 ch\u1ec9 \u0111\u1ed9 d\u00e0i c\u1ee7a m\u1ed9t \u0111\u01b0\u1eddng vi\u1ec1n. \u0110\u00e2y l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m quan tr\u1ecdng trong c\u00e1c b\u00e0i to\u00e1n li\u00ean quan \u0111\u1ebfn t\u00ednh di\u1ec7n t\u00edch, th\u1ec3 t\u00edch hay c\u00e1c v\u1ea5n \u0111\u1ec1 li\u00ean quan \u0111\u1ebfn \u0111o l\u01b0\u1eddng v\u00e0 quy ho\u1ea1ch kh\u00f4ng gian. H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u v\u1ec1 chu vi v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y!<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_40 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\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" area-label=\"ez-toc-toggle-icon-1\"><label for=\"item-6ad69a32d6f3f\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;direction:ltr;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input  type=\"checkbox\" id=\"item-6ad69a32d6f3f\"><\/a><\/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:\/\/ungdung.hotronghiencuu.com\/open\/chu-vi-la-gi\/#1_Dinh_nghia_ve_chu_vi\" title=\"1. \u0110\u1ecbnh ngh\u0129a v\u1ec1 chu vi\">1. \u0110\u1ecbnh ngh\u0129a v\u1ec1 chu vi<\/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:\/\/ungdung.hotronghiencuu.com\/open\/chu-vi-la-gi\/#Vi_du\" title=\"V\u00ed d\u1ee5:\">V\u00ed d\u1ee5:<\/a><ul class='ez-toc-list-level-4'><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/chu-vi-la-gi\/#Cong_thuc_chu_vi\" title=\"C\u00f4ng th\u1ee9c chu vi:\">C\u00f4ng th\u1ee9c chu vi:<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/chu-vi-la-gi\/#2_Cach_tinh_chu_vi_hinh_tron\" title=\"2. C\u00e1ch t\u00ednh chu vi h\u00ecnh tr\u00f2n\">2. C\u00e1ch t\u00ednh chu vi h\u00ecnh tr\u00f2n<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/chu-vi-la-gi\/#Vi_du-2\" title=\"V\u00ed d\u1ee5:\">V\u00ed d\u1ee5:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/chu-vi-la-gi\/#3_Cach_tinh_chu_vi_hinh_chu_nhat\" title=\"3. C\u00e1ch t\u00ednh chu vi h\u00ecnh ch\u1eef nh\u1eadt\">3. C\u00e1ch t\u00ednh chu vi h\u00ecnh ch\u1eef nh\u1eadt<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/chu-vi-la-gi\/#Vi_du-3\" title=\"V\u00ed d\u1ee5:\">V\u00ed d\u1ee5:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/chu-vi-la-gi\/#4_Cach_tinh_chu_vi_hinh_vuong\" title=\"4. C\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng\">4. C\u00e1ch t\u00ednh chu vi h\u00ecnh 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-9\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/chu-vi-la-gi\/#Vi_du-4\" title=\"V\u00ed d\u1ee5:\">V\u00ed d\u1ee5:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/chu-vi-la-gi\/#5_Cach_tinh_chu_vi_hinh_tam_giac\" title=\"5. C\u00e1ch t\u00ednh chu vi h\u00ecnh tam gi\u00e1c\">5. C\u00e1ch t\u00ednh chu vi h\u00ecnh tam gi\u00e1c<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/chu-vi-la-gi\/#Vi_du-5\" title=\"V\u00ed d\u1ee5:\">V\u00ed d\u1ee5:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/chu-vi-la-gi\/#6_Cach_tinh_chu_vi_hinh_binh_hanh_va_hinh_thang\" title=\"6. C\u00e1ch t\u00ednh chu vi h\u00ecnh b\u00ecnh h\u00e0nh v\u00e0 h\u00ecnh thang\">6. C\u00e1ch t\u00ednh chu vi h\u00ecnh b\u00ecnh h\u00e0nh v\u00e0 h\u00ecnh thang<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/ungdung.hotronghiencuu.com\/open\/chu-vi-la-gi\/#Vi_du-6\" title=\"V\u00ed d\u1ee5:\">V\u00ed d\u1ee5:<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"1_Dinh_nghia_ve_chu_vi\"><\/span>1. \u0110\u1ecbnh ngh\u0129a v\u1ec1 chu vi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Chu vi l\u00e0 t\u1ed5ng \u0111\u1ed9 d\u00e0i c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c c\u1ea1nh c\u1ee7a m\u1ed9t h\u00ecnh h\u1ecdc. N\u00f3 \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng \u0111\u01a1n v\u1ecb \u0111o chi\u1ec1u d\u00e0i, ch\u1eb3ng h\u1ea1n nh\u01b0 m\u00e9t ho\u1eb7c centimet. Chu vi th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111o k\u00edch th\u01b0\u1edbc c\u1ee7a m\u1ed9t h\u00ecnh v\u00e0 c\u00f3 th\u1ec3 gi\u00fap ch\u00fang ta t\u00ednh to\u00e1n c\u00e1c th\u00f4ng s\u1ed1 kh\u00e1c nh\u01b0 di\u1ec7n t\u00edch hay b\u00e1n k\u00ednh.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Vi_du\"><\/span>V\u00ed d\u1ee5:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t v\u00ed d\u1ee5 \u0111\u01a1n gi\u1ea3n v\u1ec1 chu vi l\u00e0 khi ch\u00fang ta mu\u1ed1n bi\u1ebft chi\u1ec1u d\u00e0i xung quanh m\u1ed9t vi\u00ean bi. Ta c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c chu vi c\u1ee7a h\u00ecnh tr\u00f2n \u0111\u1ec3 t\u00ednh to\u00e1n chi\u1ec1u d\u00e0i c\u1ee7a vi\u00ean bi.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Cong_thuc_chu_vi\"><\/span>C\u00f4ng th\u1ee9c chu vi:<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>\u0110\u1ed1i v\u1edbi h\u00ecnh tr\u00f2n: Chu vi = 2 * \u03c0 * b\u00e1n k\u00ednh<\/li>\n<li>\u0110\u1ed1i v\u1edbi h\u00ecnh ch\u1eef nh\u1eadt: Chu vi = 2 * (chi\u1ec1u d\u00e0i + chi\u1ec1u r\u1ed9ng)<\/li>\n<li>\u0110\u1ed1i v\u1edbi h\u00ecnh vu\u00f4ng: Chu vi = 4 * c\u1ea1nh<\/li>\n<li>\u0110\u1ed1i v\u1edbi tam gi\u00e1c: Chu vi = c\u1ea1nh a + c\u1ea1nh b + c\u1ea1nh c<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"2_Cach_tinh_chu_vi_hinh_tron\"><\/span>2. C\u00e1ch t\u00ednh chu vi h\u00ecnh tr\u00f2n<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" alt=\"2. C\u00e1ch t\u00ednh chu vi h\u00ecnh tr\u00f2n\" src=\"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-content\/uploads\/2023\/09\/cach_tinh_chu_vi_cac_hinh_hoc_va_nhung_cong_thuc_quan_trong_de_nam_vung.jpeg\" style=\"text-align: center; clear: both; display: block; margin: 0 auto;\" title=\"2. C\u00e1ch t\u00ednh chu vi h\u00ecnh tr\u00f2n\"\/><\/p>\n<p>\u0110\u1ec3 t\u00ednh chu vi c\u1ee7a m\u1ed9t h\u00ecnh tr\u00f2n, ta c\u1ea7n bi\u1ebft b\u00e1n k\u00ednh c\u1ee7a n\u00f3. B\u00e1n k\u00ednh l\u00e0 kho\u1ea3ng c\u00e1ch t\u1eeb t\u00e2m c\u1ee7a h\u00ecnh tr\u00f2n \u0111\u1ebfn b\u1ea5t k\u1ef3 \u0111i\u1ec3m n\u00e0o tr\u00ean \u0111\u01b0\u1eddng vi\u1ec1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Vi_du-2\"><\/span>V\u00ed d\u1ee5:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Gi\u1ea3 s\u1eed ch\u00fang ta c\u00f3 m\u1ed9t h\u00ecnh tr\u00f2n v\u1edbi b\u00e1n k\u00ednh l\u00e0 5cm. \u0110\u1ec3 t\u00ednh chu vi, ta s\u1ebd s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c:<\/p>\n<p>Chu vi = 2 * \u03c0 * b\u00e1n k\u00ednh = 2 * 3.14 * 5 = 31.4 cm<\/p>\n<h2><span class=\"ez-toc-section\" id=\"3_Cach_tinh_chu_vi_hinh_chu_nhat\"><\/span>3. C\u00e1ch t\u00ednh chu vi h\u00ecnh ch\u1eef nh\u1eadt<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>H\u00ecnh ch\u1eef nh\u1eadt l\u00e0 m\u1ed9t h\u00ecnh c\u00f3 hai c\u1ea1nh \u0111\u1ed1i di\u1ec7n b\u1eb1ng nhau v\u00e0 hai c\u1ea1nh k\u1ec1 c\u00f3 chi\u1ec1u d\u00e0i kh\u00e1c nhau.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Vi_du-3\"><\/span>V\u00ed d\u1ee5:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Gi\u1ea3 s\u1eed ch\u00fang ta c\u00f3 m\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt v\u1edbi chi\u1ec1u d\u00e0i l\u00e0 6cm v\u00e0 chi\u1ec1u r\u1ed9ng l\u00e0 4cm. \u0110\u1ec3 t\u00ednh chu vi, ta s\u1ebd s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c:<\/p>\n<p>Chu vi = 2 * (chi\u1ec1u d\u00e0i + chi\u1ec1u r\u1ed9ng) = 2 * (6 + 4) = 20 cm<\/p>\n<h2><span class=\"ez-toc-section\" id=\"4_Cach_tinh_chu_vi_hinh_vuong\"><\/span>4. C\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" alt=\"4. C\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng\" src=\"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-content\/uploads\/2023\/09\/cach_tinh_chu_vi_cac_hinh_hoc_va_nhung_cong_thuc_quan_trong_de_nam_vung-1.jpeg\" style=\"text-align: center; clear: both; display: block; margin: 0 auto;\" title=\"4. C\u00e1ch t\u00ednh chu vi h\u00ecnh vu\u00f4ng\"\/><\/p>\n<p>H\u00ecnh vu\u00f4ng l\u00e0 m\u1ed9t h\u00ecnh c\u00f3 c\u1ea1nh \u0111\u1ec1u v\u00e0 g\u00f3c c\u1ee7a n\u00f3 l\u00e0 90 \u0111\u1ed9.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Vi_du-4\"><\/span>V\u00ed d\u1ee5:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Gi\u1ea3 s\u1eed ch\u00fang ta c\u00f3 m\u1ed9t h\u00ecnh vu\u00f4ng v\u1edbi c\u1ea1nh l\u00e0 8cm. \u0110\u1ec3 t\u00ednh chu vi, ta s\u1ebd s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c:<\/p>\n<p>Chu vi = 4 * c\u1ea1nh = 4 * 8 = 32 cm<\/p>\n<h2><span class=\"ez-toc-section\" id=\"5_Cach_tinh_chu_vi_hinh_tam_giac\"><\/span>5. C\u00e1ch t\u00ednh chu vi h\u00ecnh tam gi\u00e1c<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Tam gi\u00e1c l\u00e0 m\u1ed9t h\u00ecnh c\u00f3 ba c\u1ea1nh v\u00e0 ba g\u00f3c.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Vi_du-5\"><\/span>V\u00ed d\u1ee5:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Gi\u1ea3 s\u1eed ch\u00fang ta c\u00f3 m\u1ed9t tam gi\u00e1c v\u1edbi c\u00e1c c\u1ea1nh a, b v\u00e0 c l\u1ea7n l\u01b0\u1ee3t l\u00e0 5cm, 7cm v\u00e0 9cm. \u0110\u1ec3 t\u00ednh chu vi, ta s\u1ebd s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c:<\/p>\n<p>Chu vi = c\u1ea1nh a + c\u1ea1nh b + c\u1ea1nh c = 5 + 7 + 9 = 21 cm<\/p>\n<h2><span class=\"ez-toc-section\" id=\"6_Cach_tinh_chu_vi_hinh_binh_hanh_va_hinh_thang\"><\/span>6. C\u00e1ch t\u00ednh chu vi h\u00ecnh b\u00ecnh h\u00e0nh v\u00e0 h\u00ecnh thang<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>H\u00ecnh b\u00ecnh h\u00e0nh l\u00e0 m\u1ed9t h\u00ecnh c\u00f3 hai \u0111\u01b0\u1eddng k\u00edch th\u01b0\u1edbc song song v\u00e0 c\u00e1c g\u00f3c trong n\u00f3 \u0111\u1ec1u l\u00e0 g\u00f3c vu\u00f4ng.<\/p>\n<p>H\u00ecnh thang l\u00e0 m\u1ed9t h\u00ecnh c\u00f3 hai \u0111\u01b0\u1eddng k\u00edch th\u01b0\u1edbc kh\u00f4ng song song v\u00e0 c\u00e1c g\u00f3c trong n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 g\u00f3c vu\u00f4ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Vi_du-6\"><\/span>V\u00ed d\u1ee5:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Gi\u1ea3 s\u1eed ch\u00fang ta c\u00f3 m\u1ed9t h\u00ecnh b\u00ecnh h\u00e0nh v\u1edbi \u0111\u01b0\u1eddng k\u00edch th\u01b0\u1edbc a l\u00e0 5cm v\u00e0 \u0111\u01b0\u1eddng k\u00edch th\u01b0\u1edbc b l\u00e0 7cm. \u0110\u1ec3 t\u00ednh chu vi, ta s\u1ebd s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c:<\/p>\n<p>Chu vi = 2 * (\u0111\u01b0\u1eddng k\u00edch th\u01b0\u1edbc a + \u0111\u01b0\u1eddng k\u00edch th\u01b0\u1edbc b) = 2 * (5 + 7) = 24 cm<\/p>\n<p>Gi\u1ea3 s\u1eed ch\u00fang ta c\u00f3 m\u1ed9t h\u00ecnh thang v\u1edbi \u0111\u00e1y l\u1edbn l\u00e0 6cm, \u0111\u00e1y nh\u1ecf l\u00e0 4cm v\u00e0 chi\u1ec1u cao l\u00e0 3cm. \u0110\u1ec3 t\u00ednh chu vi, ta s\u1ebd s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c:<\/p>\n<p>Chu vi = \u0111\u00e1y l\u1edbn + \u0111\u00e1y nh\u1ecf + c\u1ea1nh a + c\u1ea1nh b = 6 + 4 + 3 + 3 = 16 cm<\/p>\n<p>Chu vi l\u00e0 t\u1ed5ng \u0111\u1ed9 d\u00e0i c\u1ee7a c\u00e1c c\u1ea1nh trong m\u1ed9t h\u00ecnh h\u1ecdc. N\u00f3 l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m quan tr\u1ecdng trong to\u00e1n h\u1ecdc v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00ednh to\u00e1n di\u1ec7n t\u00edch, th\u1ec3 t\u00edch v\u00e0 c\u00e1c th\u00f4ng s\u1ed1 kh\u00e1c c\u1ee7a c\u00e1c h\u00ecnh. Hi\u1ec3u v\u1ec1 chu vi gi\u00fap ta c\u00f3 c\u00e1i nh\u00ecn t\u1ed5ng quan v\u1ec1 k\u00edch th\u01b0\u1edbc v\u00e0 c\u1ea5u tr\u00fac c\u1ee7a m\u1ed9t h\u00ecnh, t\u1eeb \u0111\u00f3 \u00e1p d\u1ee5ng v\u00e0o th\u1ef1c t\u1ebf v\u00e0 c\u00e1c b\u00e0i to\u00e1n li\u00ean quan.<br \/>\n<iframe loading=\"lazy\" title=\"CHU VI L\u00c0 G\u00cc ? C\u00c1CH T\u00cdNH CHU VI - &quot;\u0110\u01a1n gi\u1ea3n th\u1ebf m\u00e0 m\u00ecnh kh\u00f4ng bi\u1ebft !&quot;\" width=\"790\" height=\"444\" src=\"https:\/\/www.youtube.com\/embed\/ntxXv1PCdYE?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chu vi l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong to\u00e1n h\u1ecdc v\u00e0 h\u00ecnh h\u1ecdc \u0111\u1ec3 ch\u1ec9 \u0111\u1ed9 d\u00e0i c\u1ee7a m\u1ed9t \u0111\u01b0\u1eddng vi\u1ec1n. \u0110\u00e2y l\u00e0 m\u1ed9t&#8230; <\/p>\n","protected":false},"author":1,"featured_media":29550,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[],"class_list":["post-29552","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-khai-niem-1"],"_links":{"self":[{"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/posts\/29552","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/comments?post=29552"}],"version-history":[{"count":0,"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/posts\/29552\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/media\/29550"}],"wp:attachment":[{"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/media?parent=29552"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/categories?post=29552"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ungdung.hotronghiencuu.com\/open\/wp-json\/wp\/v2\/tags?post=29552"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}