{"common":{"save":0,"post_id":"5897","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1236","post_id":"5897","mon_id":"1158530","chapter_id":"1158694","question":"<p>Lan mu\u1ed1n dùng các que tính \u0111\u1ec3 x\u1ebfp thành m\u1ed9t hình vuông mà m\u1ed7i c\u1ea1nh c\u1ee7a hình vuông \u0111\u01b0\u1ee3c x\u1ebfp b\u1eb1ng 5 que tính. S\u1ed1 que tính Lan c\u1ea7n dùng là <input class=\"_tit_hoi\" disabled=\"disabled\" type=\"text\"\/> <\/p><div class=\"lt123_imgs\"><img class=\"img_dd tiny\" src=\"\/data\/library\/hoa-qua\/gio-ca-chua.png\" \/><\/div>","options":["20","28","16","24"],"correct":"1","level":"3","hint":"<p>Mu\u1ed1n tính chu vi hình vuông ta l\u1ea5y \u0111\u1ed9 dài m\u1ed9t c\u1ea1nh nhân v\u1edbi 4.<\/p>","answer":"<p>Xem m\u1ed9t \u0111\u01a1n v\u1ecb là m\u1ed9t que tính, khi \u0111ó chu vi c\u1ee7a hình vuông là:<\/p><p>5 x 4 = 20 (que tính)<\/p><p>Do \u0111ó \u0111\u1ec3 x\u1ebfp \u0111\u01b0\u1ee3c m\u1ed9t hình vuông có c\u1ea1nh g\u1ed3m 5 que tính thì Lan c\u1ea7n 20 que tính.<\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"><strong>20<\/strong><\/span><\/p>","type":"choose","extra_type":"flower","time":"0","user_id":"131","test":"3","date":"2022-06-12 08:11:48","option_type":"txt","len":0},{"id":"1238","post_id":"5897","mon_id":"1158530","chapter_id":"1158694","question":"<p>M\u1ed9t m\u1eb7t bàn hình vuông có chu vi là 16 dm 4 cm. Tính c\u1ea1nh c\u1ee7a hình vuông \u0111ó.<\/p><div class=\"lt123_imgs\"><img class=\"img_dd tiny\" src=\"\/data\/library\/do-vat\/ban.png\" \/><\/div>","options":["<strong>A.<\/strong> 41 cm","<strong>B.<\/strong> 41 dm","<strong>C.<\/strong> 40 cm","<strong>D.<\/strong> 40 dm"],"correct":"1","level":"3","hint":"<p>Mu\u1ed1n tính chu vi hình vuông ta l\u1ea5y \u0111\u1ed9 dài m\u1ed9t c\u1ea1nh nhân v\u1edbi 4.<\/p>","answer":"<p>\u0110\u1ed5i: 16 dm 4 cm = 164 cm<\/p><p>C\u1ea1nh c\u1ee7a hình vuông \u0111ó là<\/p><p> 164 : 4 = 41 (cm)<\/p><p> \u0110áp s\u1ed1: 41 cm<\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"><strong>A.<\/strong> 41 cm<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-06-12 08:18:07","option_type":"txt","len":0},{"id":"1241","post_id":"5897","mon_id":"1158530","chapter_id":"1158694","question":"<p>Hình ch\u1eef nh\u1eadt và hình vuông d\u01b0\u1edbi \u0111ây có chu vi b\u1eb1ng nhau, \u0111úng hay sai?<\/p><p><span class=\"svgedit\"><svg height=\"200\" width=\"180\"> <g><title><\/title><rect fill=\"#fff\" height=\"202\" id=\"canvas_background\" width=\"182\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g><title><\/title><g id=\"svg_7\"> <rect fill=\"#ffaa56\" height=\"40\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\" width=\"100\" x=\"54\" y=\"31.25\"><\/rect> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_2\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"81\" xml:space=\"preserve\" y=\"21.25\">50 cm<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_3\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"10\" xml:space=\"preserve\" y=\"54.25\">20 cm<\/text> <\/g> <g id=\"svg_8\"> <rect fill=\"#d4ffaa\" height=\"70\" id=\"svg_4\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\" width=\"70\" x=\"47\" y=\"104.25\"><\/rect> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"15\" id=\"svg_6\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"61\" xml:space=\"preserve\" y=\"98.25\">35 cm<\/text> <\/g> <\/g> <\/svg><\/span><\/p>","options":["\u0110úng ","Sai"],"correct":"1","level":"3","hint":"<p>Mu\u1ed1n tính chu vi hình ch\u1eef nh\u1eadt, ta l\u1ea5y chi\u1ec1u dài c\u1ed9ng chi\u1ec1u r\u1ed9ng (cùng \u0111\u01a1n v\u1ecb \u0111o) r\u1ed3i nhân v\u1edbi 2.<\/p><p>Mu\u1ed1n tính chu vi hình vuông ta l\u1ea5y \u0111\u1ed9 dài m\u1ed9t c\u1ea1nh nhân v\u1edbi 4.<\/p>","answer":"<p>Chu vi hình ch\u1eef nh\u1eadt là<\/p><p>(50 + 20) x 2 = 140 (cm)<\/p><p>Chu vi hình vuông là <\/p><p>35 x 4 = 140 (cm)<\/p><p>V\u1eady c\u1ea3 hai hình có chu vi b\u1eb1ng nhau.<\/p><p>\u0110áp án \u0111úng là <span style=\"color:#16a085;\"><strong>\u0110úng<\/strong><\/span><\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"131","test":"1","date":"2022-06-12 08:24:40","option_type":"txt","len":0}]}