{"id":10071,"date":"2021-11-21T19:02:40","date_gmt":"2021-11-21T12:02:40","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=10071"},"modified":"2021-11-21T19:39:10","modified_gmt":"2021-11-21T12:39:10","slug":"tong-dien-tich-trai-dat-duoc-tinh-bang-cach-nao","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/tong-dien-tich-trai-dat-duoc-tinh-bang-cach-nao\/","title":{"rendered":"T\u1ed5ng di\u1ec7n t\u00edch Tr\u00e1i \u0110\u1ea5t \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng c\u00e1ch n\u00e0o?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Tr\u00e1i \u0110\u1ea5t l\u00e0 m\u1ed9t qu\u1ea3 c\u1ea7u tr\u00f2n. Ng\u00e0y nay ngay m\u1ed9t em <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> ti\u1ec3u h\u1ecdc c\u0169ng bi\u1ebft \u0111\u01b0\u1ee3c \u0111i\u1ec1u \u0111\u00f3. Nh\u01b0ng th\u1eddi xa x\u01b0a kh\u00f4ng m\u1ed9t ai bi\u1ebft T r\u00e1i \u0110\u1ea5t h\u00ecnh c\u1ea7u. V\u00ec ng\u01b0\u1eddi x\u01b0a tr\u1ef1c ti\u1ebfp nh\u00ecn th\u1ea5y T r\u00e1i \u0110\u1ea5t l\u00e0 m\u1ed9t m\u1eb7t ph\u1eb3ng. H\u1ecd nh\u00ecn th\u1ea5y m\u1eb7t ti\u1ebfp gi\u00e1p v\u1edbi b\u1ea7u tr\u1eddi n\u01a1i ch\u00e2n tr\u1eddi, n\u00ean h\u1ecd ngh\u0129 r\u1eb1ng \u0111\u00f3 l\u00e0 bi\u00ean c\u1ee7a m\u1eb7t \u0111\u1ea5t. H\u1ecd tin r\u1eb1ng tr\u1eddi v\u00e0 \u0111\u1ea5t c\u00f3 ch\u1ed7 t\u1eadn c\u00f9ng, h\u1ecd g\u1ecdi ch\u1ed7 \u0111\u00f3 l\u00e0 &#8220;Ch\u00e2n tr\u1eddi g\u00f3c b\u1ec3&#8221;. T h\u1ef1c ra t\u1eeb x\u01b0a \u0111\u1ebfn nay ch\u01b0a h\u1ec1 c\u00f3 ai \u0111\u1ebfn \u0111\u01b0\u1ee3c ch\u1ed7 \u0111\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 sau qua nhi\u1ec1u th\u1ef1c t\u1ebf, ng\u01b0\u1eddi ta m\u1edbi tin r\u1eb1ng<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00e1i \u0110\u1ea5t kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t m\u1eb7t ph\u1eb3ng m\u00e0 l\u00e0 m\u1ed9t h\u00ecnh c\u1ea7u, g\u1ecdi l\u00e0 &#8220;\u0110\u1ecba C\u1ea7u&#8221;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u01b0ng T r\u00e1i \u0110\u1ea5t to nh\u01b0 th\u1ebf, d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p g\u00ec \u0111\u1ec3 t\u00ednh ra \u0111\u01b0\u1ee3c di\u1ec7n t\u00edch c\u1ee7a b\u1ec1 m\u1eb7t T r\u00e1i \u0110\u1ea5t ?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u nh\u00e0 khoa h\u1ecdc r\u1ea5t h\u1ee9ng th\u00fa v\u1ec1 v\u1ea5n \u0111\u1ec1 n\u00e0y v\u00e0 \u0111\u00e3 t\u00ecm nhi\u1ec1u c\u00e1ch \u0111\u1ec3 t\u00ednh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01a1n 2.000 n\u0103m T CN m\u1ed9t <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc gi\u1ea3<\/a> c\u1ed5 Hy L\u1ea1p l\u00e0 Aristot l\u1ea7n \u0111\u1ea7u ti\u00ean d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p \u0111o \u0111\u1ec3 t\u00ednh di\u1ec7n t\u00edch T r\u00e1i \u0110\u1ea5t. H\u1ed3i \u0111\u00f3 \u00f4ng s\u1ed1ng \u1edf c\u1ea3ng Alisan, Ai C\u1eadp. \u1ede Ax\u01b0oan ph\u00eda nam c\u1ea3ng c\u00f3 m\u1ed9t c\u00e1i gi\u1ebfng kh\u00f4 r\u1ea5t s\u00e2u. H\u1eb1ng n\u0103m c\u1ee9 \u0111\u1ebfn \u0111\u00fang tr\u01b0a ng\u00e0y H\u1ea1 ch\u00ed, M\u1eb7t Tr\u1eddi chi\u1ebfu th\u1eb3ng xu\u1ed1ng \u0111\u00e1y gi\u1ebfng t\u1ee9c l\u00e0 tr\u01b0a ng\u00e0y \u0111\u00f3 v\u1ecb tr\u00ed M\u1eb7t T r\u1eddi n\u1eb1m tr\u00ean \u0111\u1ec9nh \u0111\u1ea7u gi\u1ebfng, qua ng\u00e0y \u0111\u00f3 th\u00ec M\u1eb7t T r\u1eddi kh\u00f4ng chi\u1ebfu xu\u1ed1ng \u0111\u00e1y gi\u1ebfng n\u1eefa. Nh\u01b0ng th\u1ef1c ra ch\u00ednh bu\u1ed5i tr\u01b0a ng\u00e0y H\u1ea1 ch\u00ed kh\u00f4ng ph\u1ea3i M\u1eb7t T r\u1eddi chi\u1ebfu vu\u00f4ng g\u00f3c v\u1edbi m\u1eb7t \u0111\u1ea5t v\u00f9ng Alexandre. \u00d4ng \u0111\u00e3 d\u00f9ng m\u1ed9t c\u00e1i c\u1ecdc d\u00e0i c\u1eafm th\u1eb3ng \u0111\u1ee9ng tr\u00ean m\u1eb7t \u0111\u1ea5t v\u00e0 \u0111o \u0111\u01b0\u1ee3c g\u00f3c chi\u1ebfu tr\u01b0a ng\u00e0y H\u1ea1 ch\u00ed l\u00e0 7,2o. V\u00ec v\u1eady \u00f4ng kh\u1eb3ng \u0111\u1ecbnh s\u1ef1 ch\u00eanh l\u1ec7ch 7,2o n\u00e0y ch\u00ednh l\u00e0 \u0111\u1ed9 cong c\u1ee7a m\u1eb7t \u0111\u1ea5t gi\u1eefa hai v\u00f9ng Ax\u01b0oan v\u00e0 Alexandre g\u00e2y n\u00ean. C\u0103n c\u1ee9 tr\u1ecb s\u1ed1 n\u00e0y v\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa hai \u0111\u1ecba \u0111i\u1ec3m \u00f4ng t\u00ecm \u0111\u01b0\u1ee3c chu vi c\u1ee7a T r\u00e1i \u0110\u1ea5t kho\u1ea3ng 39.816 km. T r\u1ecb s\u1ed1 n\u00e0y r\u1ea5t g\u1ea7n v\u1edbi chu vi T r\u00e1i \u0110\u1ea5t ng\u00e0y nay t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 sau c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p t\u01b0\u01a1ng t\u1ef1, t\u00ednh ra Tr\u00e1i \u0110\u1ea5t l\u1edbn bao nhi\u00eau. Ng\u01b0\u1eddi ta c\u00f2n d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p tam gi\u00e1c l\u01b0\u1ee3ng \u0111\u1ec3 so s\u00e1nh \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a k\u1ebft qu\u1ea3 t\u00ednh to\u00e1n. T \u1eeb \u0111\u00f3 bi\u1ebft \u0111\u01b0\u1ee3c T r\u00e1i \u0110\u1ea5t h\u00ecnh c\u1ea7u g\u1ea7n gi\u1ed1ng v\u1edbi h\u00ecnh elip tr\u00f2n xoay, g\u1ecdi l\u00e0 \u0110\u1ecba C\u1ea7u. C\u0103n c\u1ee9 k\u1ebft qu\u1ea3 \u0111o th\u1ef1c th\u00ec b\u00e1n k\u00ednh \u0111\u01b0\u1eddng x\u00edch \u0111\u1ea1o l\u00e0 6378,245 km, b\u00e1n k\u00ednh c\u1ef1c l\u00e0 6.356,863 km, \u0111\u1ed9 ch\u00eanh l\u1ec7ch gi\u1eefa b\u00e1n k\u00ednh x\u00edch \u0111\u1ea1o v\u00e0 b\u00e1n k\u00ednh c\u1ef1c ch\u1ec9 l\u00e0 1\/298,3. N\u1ebfu ta c\u0103n c\u1ee9 t\u1ec9 l\u1ec7 n\u00e0y l\u00e0m m\u1ed9t h\u00ecnh c\u1ea7u c\u00f3 b\u00e1n k\u00ednh l\u00e0 298,3 m th\u00ec s\u1ef1 ch\u00eanh l\u1ec7ch gi\u1eefa b\u00e1n k\u00ednh c\u1ef1c v\u00e0 b\u00e1n k\u00ednh x\u00edch \u0111\u1ea1o ch\u1ec9 l\u00e0 1 mm. Cho n\u00ean T r\u00e1i \u0110\u1ea5t th\u1ef1c t\u1ebf kh\u00f4ng kh\u00e1c m\u1ed9t qu\u1ea3 c\u1ea7u l\u00e0 bao nhi\u00eau. B\u00e1n k\u00ednh b\u00ecnh qu\u00e2n c\u1ee7a n\u00f3 l\u00e0 6371,2 km.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bi\u1ebft \u0111\u01b0\u1ee3c b\u00e1n k\u00ednh ta c\u00f3 th\u1ec3 t\u00ednh \u0111\u01b0\u1ee3c chu vi \u0111\u01b0\u1eddng tr\u00f2n x\u00edch \u0111\u1ea1o kho\u1ea3ng 40.075,696 km, t\u1ed5ng di\u1ec7n t\u00edch T r\u00e1i \u0110\u1ea5t kho\u1ea3ng 510 tri\u1ec7u km2.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T \u1eeb kho\u00e1: Di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t Tr\u00e1i \u0110\u1ea5t.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tr\u00e1i \u0110\u1ea5t l\u00e0 m\u1ed9t qu\u1ea3 c\u1ea7u tr\u00f2n. Ng\u00e0y nay ngay m\u1ed9t em h\u1ecdc sinh ti\u1ec3u h\u1ecdc c\u0169ng bi\u1ebft \u0111\u01b0\u1ee3c \u0111i\u1ec1u \u0111\u00f3. Nh\u01b0ng th\u1eddi xa x\u01b0a kh\u00f4ng m\u1ed9t ai bi\u1ebft T r\u00e1i \u0110\u1ea5t h\u00ecnh c\u1ea7u. V\u00ec ng\u01b0\u1eddi x\u01b0a tr\u1ef1c ti\u1ebfp nh\u00ecn th\u1ea5y T r\u00e1i \u0110\u1ea5t l\u00e0 m\u1ed9t m\u1eb7t ph\u1eb3ng. H\u1ecd nh\u00ecn th\u1ea5y m\u1eb7t ti\u1ebfp gi\u00e1p v\u1edbi [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,19],"tags":[],"class_list":["post-10071","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-tu-nhien"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10071","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=10071"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10071\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=10071"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=10071"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=10071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}