{"common":{"save":0,"post_id":"7700","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"1814","post_id":"7700","mon_id":"1159414","chapter_id":"1159460","question":"<p>T&iacute;nh di\u1ec7n t&iacute;ch c\u1ee7a&nbsp;h&igrave;nh thang c&oacute; \u0111&aacute;y l\u1edbn l&agrave; 55 dm, \u0111&aacute;y&nbsp;b&eacute; l&agrave; 30 dm, chi\u1ec1u cao 2 m.<\/p>","options":["<strong>A.<\/strong> 850 cm&sup2;","<strong>B.<\/strong> 85 dm&sup2;","<strong>C.<\/strong> 750 dm&sup2;","<strong>D.<\/strong> 850 dm&sup2;"],"correct":"4","level":"2","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>D.<\/strong>&nbsp;850 dm&sup2;<\/span><\/p><p>\u0110\u1ed5i \u0111\u01a1n v\u1ecb: 2 m = 20 dm<\/p><p>Di\u1ec7n t&iacute;ch c\u1ee7a h&igrave;nh thang \u0111&oacute; l&agrave;:<\/p><p><span class=\"math-tex\">$S=\\dfrac{(55+30)\\times 20}{2}=850$<\/span>&nbsp;(dm&sup2;)<\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"131","test":"0","date":"2024-09-22 04:45:11","option_type":"txt","len":0},{"id":"1817","post_id":"7700","mon_id":"1159414","chapter_id":"1159460","question":"<p>Di\u1ec7n t&iacute;ch h&igrave;nh thang b&ecirc;n d\u01b0\u1edbi&nbsp;l&agrave;:<\/p><p><span class=\"svgedit\"><svg height=\"140\" width=\"220\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"142\" id=\"canvas_background\" width=\"222\" 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>&lt;title&gt;&lt;\/title><path d=\"m11.09251,114.04875l36.75,-89l122.50002,0l36.74999,89l-196.00001,0z\" fill=\"#aaffd4\" id=\"svg_1\" stroke=\"#000\" stroke-width=\"1.5\"><\/path> <line fill=\"none\" id=\"svg_2\" stroke=\"#000\" stroke-linecap=\"null\" stroke-linejoin=\"null\" stroke-opacity=\"null\" stroke-width=\"1.5\" x1=\"48.5\" x2=\"48.5\" y1=\"25.25\" y2=\"114.25\"><\/line> <rect fill=\"#aaffd4\" height=\"12\" id=\"svg_3\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"1.5\" width=\"12\" x=\"48.5\" y=\"101.25\"><\/rect> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_4\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"50.5\" xml:space=\"preserve\" y=\"76.25\">16 cm<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_5\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"79.5\" xml:space=\"preserve\" y=\"20.25\">15 cm<\/text> <text fill=\"#000000\" fill-opacity=\"null\" font-family=\"Helvetica, Arial, sans-serif\" font-size=\"20\" id=\"svg_6\" stroke=\"#000\" stroke-opacity=\"null\" stroke-width=\"0\" text-anchor=\"start\" x=\"71.5\" xml:space=\"preserve\" y=\"135.25\">22 cm<\/text> <\/g> <\/svg><\/span><\/p>","options":["<strong>A.<\/strong> 296 cm&sup2;","<strong>B.<\/strong> 286 cm&sup2;","<strong>C.<\/strong> 288 cm&sup2;","<strong>D.<\/strong> 298 cm&sup2;"],"correct":"1","level":"2","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;296 cm&sup2;<\/span><\/p><p>Di\u1ec7n t&iacute;ch c\u1ee7a h&igrave;nh thang \u0111&oacute; l&agrave;:<\/p><p><span class=\"math-tex\">$S=\\dfrac{(15+22)\\times 16}{2}=296$<\/span>&nbsp;(cm&sup2;)<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-09-22 04:49:11","option_type":"txt","len":1},{"id":"1821","post_id":"7700","mon_id":"1159414","chapter_id":"1159460","question":"<p>Di\u1ec7n t&iacute;ch c\u1ee7a h&igrave;nh thang c&oacute; \u0111\u1ed9 d&agrave;i hai \u0111&aacute;y 6 cm&nbsp;v&agrave; 10 cm, chi\u1ec1u cao 8 cm l&agrave;:<\/p>","options":["<strong>A.<\/strong> 128 cm&sup2;","<strong>B.<\/strong> 64 cm&sup2;","<strong>C.<\/strong> 68 cm&sup2;","<strong>D.<\/strong> 130 cm&sup2;"],"correct":"2","level":"2","hint":"","answer":"<p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong>&nbsp;64 cm&sup2;<\/span><\/p><p>Di\u1ec7n t&iacute;ch c\u1ee7a h&igrave;nh thang \u0111&oacute; l&agrave;:<\/p><p><span class=\"math-tex\">$S=\\dfrac{(6+10)\\times 8}{2}=64$<\/span>&nbsp;(cm&sup2;)<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2024-09-22 04:55:01","option_type":"txt","len":1}]}