{"common":{"save":0,"post_id":"7142","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"5693","post_id":"7142","mon_id":"1158924","chapter_id":"1159174","question":"<p>Cho h&igrave;nh ch&oacute;p S.ABCD c&oacute; \u0111&aacute;y ABCD l&agrave; h&igrave;nh ch\u1eef nh\u1eadt, AB = a, AD = 2a, c\u1ea1nh SA&nbsp;<span class=\"math-tex\">$\\bot$<\/span>&nbsp;(ABCD), SA = 3a. Kho\u1ea3ng c&aacute;ch gi\u1eefa hai \u0111\u01b0\u1eddng th\u1eb3ng SA v&agrave; CD b\u1eb1ng<\/p>","options":["<strong>A.<\/strong> a","<strong>B.<\/strong> 2a","<strong>C.<\/strong> a<span class=\"math-tex\">$\\sqrt{5}$<\/span>","<strong>D.<\/strong> a<span class=\"math-tex\">$\\sqrt{13}$<\/span>"],"correct":"2","level":"2","hint":"","answer":"<p><span class=\"svgedit\"><svg height=\"270\" width=\"320\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"272\" id=\"canvas_background\" width=\"322\" 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><image height=\"266\" id=\"svg_1\" width=\"310\" x=\"3\" 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\" y=\"1\"><\/image> <rect fill=\"#fff\" height=\"19\" id=\"svg_2\" stroke=\"#ffffff\" stroke-width=\"1.5\" width=\"24\" x=\"99\" y=\"224\"><\/rect> <rect fill=\"#fff\" height=\"21\" id=\"svg_3\" stroke=\"#ffffff\" stroke-width=\"1.5\" transform=\"rotate(-54 56.499999999999986,182.5) \" width=\"25\" x=\"44\" y=\"172\"><\/rect> <rect fill=\"#fff\" height=\"15\" id=\"svg_4\" stroke=\"#ffffff\" stroke-width=\"1.5\" transform=\"rotate(-45 128.99999999999994,123.49999999999999) \" width=\"20\" x=\"119\" y=\"116\"><\/rect> <\/g> <\/svg><\/span><\/p><p>Ta c&oacute; AD&nbsp;<span class=\"math-tex\">$\\bot$<\/span>&nbsp;SA, AD&nbsp;<span class=\"math-tex\">$\\bot$<\/span>&nbsp;CD&nbsp;&rArr; d(SA, CD) = AD = 2a.<\/p><p>Ch\u1ecdn&nbsp;<span style=\"color:#16a085;\"><strong>B.<\/strong> 2a.<\/span><\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2024-05-24 02:00:09","option_type":"math","len":0},{"id":"5695","post_id":"7142","mon_id":"1158924","chapter_id":"1159174","question":"<p>Th\u1ec3 t&iacute;ch c\u1ee7a kh\u1ed1i ch&oacute;p c&oacute; di\u1ec7n t&iacute;ch \u0111&aacute;y b\u1eb1ng S v&agrave; chi\u1ec1u cao b\u1eb1ng h l&agrave;<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$V=\\dfrac{1}{3}S.h$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$V=3S.h$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$V=\\dfrac{1}{2}S.h$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$V=S.h$<\/span>"],"correct":"1","level":"2","hint":"","answer":"<p>Th\u1ec3 t&iacute;ch c\u1ee7a kh\u1ed1i ch&oacute;p l&agrave;&nbsp;<span style=\"color:#16a085;\"><strong>A.<\/strong>&nbsp;<span class=\"math-tex\">$V=\\dfrac{1}{3}S.h$<\/span>.<\/span><\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2024-05-24 02:02:49","option_type":"math","len":0},{"id":"5696","post_id":"7142","mon_id":"1158924","chapter_id":"1159174","question":"<p>Th\u1ec3 t&iacute;ch kh\u1ed1i l\u0103ng tr\u1ee5 c&oacute; di\u1ec7n t&iacute;ch \u0111&aacute;y b\u1eb1ng B v&agrave; chi\u1ec1u cao b\u1eb1ng h l&agrave;<\/p>","options":["<strong>A.<\/strong> <span class=\"math-tex\">$V=\\dfrac{1}{6}B.h$<\/span>","<strong>B.<\/strong> <span class=\"math-tex\">$V=\\dfrac{1}{3}B.h$<\/span>","<strong>C.<\/strong> <span class=\"math-tex\">$V=B.h$<\/span>","<strong>D.<\/strong> <span class=\"math-tex\">$V=\\dfrac{1}{2}B.h$<\/span>"],"correct":"3","level":"2","hint":"","answer":"<p>Th\u1ec3 t&iacute;ch c\u1ee7a kh\u1ed1i&nbsp;l\u0103ng tr\u1ee5 l&agrave;&nbsp;<span style=\"color:#16a085;\"><strong>C.<\/strong>&nbsp;<span class=\"math-tex\">$V=B.h$<\/span>.<\/span><\/p>","type":"choose","extra_type":"classic","user_id":"131","test":"0","date":"2024-05-24 02:05:27","option_type":"math","len":0}]}