Luyện tập chung chủ đề 9 - Chu vi, diện tích một số hình phẳng

Home Lớp 3 Toán lớp 3 - Sách Kết nối tri thức Bài 53: Luyện tập chungBài tập trung bình

{"common":{"save":0,"post_id":"5905","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1295","post_id":"5905","mon_id":"1158530","chapter_id":"1158694","question":"Tính chu vi c\u1ee7a t\u1ee9 giác ABCD trong hình v\u1ebd.<\/p><svg height=\"200\" width=\"300\"> <g><title><\/title><rect fill=\"#fff\" height=\"202\" id=\"canvas_background\" width=\"302\" 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_5\"> <line fill=\"none\" id=\"svg_1\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"57.0125\" x2=\"213.0125\" y1=\"20.2375\" y2=\"79.2375\"><\/line> <line fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"25.0125\" x2=\"250.0125\" y1=\"163.2375\" y2=\"161.2375\"><\/line> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"57.0125\" x2=\"25.0125\" y1=\"19.2375\" y2=\"163.2375\"><\/line> <line fill=\"none\" id=\"svg_4\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"213.0125\" x2=\"250.0125\" y1=\"79.2375\" y2=\"160.2375\"><\/line> <\/g> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_6\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"31.0125\" xml:space=\"preserve\" y=\"25.2375\">A<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_7\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"220.0125\" xml:space=\"preserve\" y=\"75.2375\">B<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_8\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"255.0125\" xml:space=\"preserve\" y=\"179.2375\">C<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"24\" id=\"svg_9\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"5.0125\" xml:space=\"preserve\" y=\"179.2375\">D<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_10\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"112.0125\" xml:space=\"preserve\" y=\"186.2375\">10 cm<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_11\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"235.0125\" xml:space=\"preserve\" y=\"118.2375\">3 cm<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_12\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"42.0125\" xml:space=\"preserve\" y=\"106.2375\">5 cm<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"17\" id=\"svg_13\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"132.0125\" xml:space=\"preserve\" y=\"44.2375\">8 cm<\/text> <\/g> <\/svg><\/span><\/p>","options":["A.<\/strong> 26 cm","B.<\/strong> 24 cm","C.<\/strong> 27 cm","D.<\/strong> 25 cm"],"correct":"1","level":"2","hint":"T\u1ed5ng \u0111\u1ed9 dài các c\u1ea1nh c\u1ee7a hình t\u1ee9 giác b\u1eb1ng chu vi c\u1ee7a hình \u0111ó.<\/p>","answer":"Chu vi c\u1ee7a hình t\u1ee9 giác ABCD là:<\/p>8 cm + 3 cm + 5 cm + 10 cm = 26 (cm)<\/p>                      \u0110áp s\u1ed1: 26 cm<\/p>\u0110áp án \u0111úng là A.<\/strong> 26 cm<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-06-13 04:28:37","option_type":"txt","len":0},{"id":"1297","post_id":"5905","mon_id":"1158530","chapter_id":"1158694","question":"Di\u1ec7n tích c\u1ee7a hình ch\u1eef nh\u1eadt có chi\u1ec1u dài 14 cm và chi\u1ec1u r\u1ed9ng 9 cm là:<\/p><input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> x 9 = <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> (cm²)<\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/con-vat\/cat.png\" \/><\/div>","options":"","correct":["[\"14\",\"126\"]"],"level":"2","hint":"Mu\u1ed1n tính di\u1ec7n tích hình ch\u1eef nh\u1eadt, ta l\u1ea5y chi\u1ec1u dài nhân v\u1edbi chi\u1ec1u r\u1ed9ng  (cùng \u0111\u01a1n v\u1ecb \u0111o).<\/p>","answer":"Di\u1ec7n tích c\u1ee7a hình ch\u1eef nh\u1eadt có chi\u1ec1u dài 14 cm và chi\u1ec1u r\u1ed9ng 9 cm là:<\/p>14<\/strong><\/span> x 9 = 126<\/strong><\/span> (cm²)<\/p>Các s\u1ed1 c\u1ea7n \u0111i\u1ec1n là 14<\/strong><\/span>  ;  126<\/strong><\/span><\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"1","date":"2022-06-13 04:32:15"},{"id":"1298","post_id":"5905","mon_id":"1158530","chapter_id":"1158694","question":"Di\u1ec7n tích hình vuông có c\u1ea1nh 4 cm là:<\/p><input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> x <input class=\"tim_x input_number\" tpl=\"dien_so\" type=\"text\"\/> = 16 (cm²)<\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/con-vat\/con-ong.png\" \/><\/div>","options":"","correct":["[\"4\",\"4\"]"],"level":"2","hint":"Mu\u1ed1n di\u1ec7n tích hình vuông ta l\u1ea5y \u0111\u1ed9 dài m\u1ed9t c\u1ea1nh nhân v\u1edbi chính nó.<\/p>","answer":"Di\u1ec7n tích hình vuông có c\u1ea1nh 4 cm là:<\/p>4 <\/strong><\/span>x 4 <\/strong><\/span>= 16 (cm²)<\/p>Các s\u1ed1 c\u1ea7n \u0111i\u1ec1n l\u1ea7n l\u01b0\u1ee3t là 4 <\/strong><\/span> ;  4 <\/strong><\/span><\/p>","type":"blank","extra_type":"","time":"0","user_id":"131","test":"1","date":"2022-06-13 04:35:02"}]}