{"common":{"save":0,"post_id":"8411","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"4620","post_id":"8411","mon_id":"1159414","chapter_id":"1159497","question":"<p>M\u1ed9t hình h\u1ed9p ch\u1eef nh\u1eadt có chi\u1ec1u dài a, chi\u1ec1u r\u1ed9ng b, chi\u1ec1u cao c (cùng \u0111\u01a1n v\u1ecb \u0111o) thì có th\u1ec3 tích V \u0111\u01b0\u1ee3c tính theo công th\u1ee9c nào d\u01b0\u1edbi \u0111ây?<\/p>","options":["<strong>A.<\/strong> V = a + b x c","<strong>B.<\/strong> V = a x b x c","<strong>C.<\/strong> V = a x b + c","<strong>D.<\/strong> V = a + b + c"],"correct":"2","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> V = a x b x c.<\/span><\/p><p>M\u1ed9t hình h\u1ed9p ch\u1eef nh\u1eadt có chi\u1ec1u dài a, chi\u1ec1u r\u1ed9ng b, chi\u1ec1u cao c (cùng \u0111\u01a1n v\u1ecb \u0111o) thì có th\u1ec3 tích V \u0111\u01b0\u1ee3c tính theo công th\u1ee9c là V = a x b x c.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-02-15 07:33:37","option_type":"txt","len":2},{"id":"4621","post_id":"8411","mon_id":"1159414","chapter_id":"1159497","question":"<p>Tính th\u1ec3 tích c\u1ee7a hình h\u1ed9p ch\u1eef nh\u1eadt có chi\u1ec1u dài 4 cm, chi\u1ec1u r\u1ed9ng 3 cm và chi\u1ec1u cao 5 cm.<\/p>","options":["<strong>A.<\/strong> 60 cm³","<strong>B.<\/strong> 12 cm³","<strong>C.<\/strong> 15 cm³","<strong>D.<\/strong> 20 cm³"],"correct":"1","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> 60 cm³.<\/span><\/p><p>Th\u1ec3 tích c\u1ee7a hình h\u1ed9p ch\u1eef nh\u1eadt là V = 4 x 3 x 5 = 60 (cm³).<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-02-15 07:36:07","option_type":"txt","len":1},{"id":"4622","post_id":"8411","mon_id":"1159414","chapter_id":"1159497","question":"<p>Tính th\u1ec3 tích c\u1ee7a hình h\u1ed9p ch\u1eef nh\u1eadt có chi\u1ec1u dài 10 cm, chi\u1ec1u r\u1ed9ng 8 cm và chi\u1ec1u cao 7 cm.<\/p>","options":["<strong>A.<\/strong> 80 cm³","<b>B.<\/b> 70 cm³","<strong>C.<\/strong> 560 cm³","<strong>D.<\/strong> 56 cm³"],"correct":"3","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>C.<\/strong> 560 cm³.<\/span><\/p><p>Th\u1ec3 tích c\u1ee7a hình h\u1ed9p ch\u1eef nh\u1eadt là 10 x 8 x 7 = 560 (cm³).<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-02-15 07:39:13","option_type":"txt","len":1}]}
