{"common":{"save":0,"post_id":"8408","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"4540","post_id":"8408","mon_id":"1159414","chapter_id":"1159497","question":"<p>Th\u1ec3 tích V c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng có c\u1ea1nh m \u0111\u01b0\u1ee3c tính theo công th\u1ee9c là:<\/p>","options":["<strong>A.<\/strong> V = m + m + m","<strong>B.<\/strong> V = m <span class=\"math-tex\">$\\times$<\/span> m <span class=\"math-tex\">$\\times$<\/span> m","<strong>C.<\/strong> V = 4 <span class=\"math-tex\">$\\times$<\/span> m <span class=\"math-tex\">$\\times$<\/span> m","<strong>D.<\/strong> V = 6 <span class=\"math-tex\">$\\times$<\/span> m <span class=\"math-tex\">$\\times$<\/span> m"],"correct":"2","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> V = m <span class=\"math-tex\">$\\times$<\/span> m <span class=\"math-tex\">$\\times$<\/span> m.<\/span><\/p><p>Th\u1ec3 tích V c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng có c\u1ea1nh m \u0111\u01b0\u1ee3c tính theo công th\u1ee9c là:<strong> V = m <span class=\"math-tex\">$\\times$<\/span> m <span class=\"math-tex\">$\\times$<\/span> m.<\/strong><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-02-12 08:18:14","option_type":"math","len":0},{"id":"4541","post_id":"8408","mon_id":"1159414","chapter_id":"1159497","question":"<p>Th\u1ec3 tích c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng có c\u1ea1nh 7 dm là:<\/p>","options":["<strong>A.<\/strong> 343 dm²","<strong>B.<\/strong> 294 dm³","<strong>C.<\/strong> 343 dm³","<strong>D.<\/strong> 196 dm³"],"correct":"3","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>C.<\/strong> 343 dm³.<\/span><\/p><p>Th\u1ec3 tích c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng có c\u1ea1nh 7 dm là: V = 7 x 7 x 7 = 343 (dm³).<\/p>","type":"choose","extra_type":"shape1","time":"0","user_id":"131","test":"0","date":"2025-02-12 08:20:15","option_type":"txt","len":0},{"id":"4543","post_id":"8408","mon_id":"1159414","chapter_id":"1159497","question":"<p>Th\u1ec3 tích c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng có c\u1ea1nh 2,5 cm là:<\/p>","options":["<strong>A.<\/strong> 15,625 cm³","<strong>B.<\/strong> 15,625 m³","<strong>C.<\/strong> 37,5 cm³","<strong>D.<\/strong> 37,5 dm³"],"correct":"1","level":"1","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>A.<\/strong> 15,625 cm³.<\/span><\/p><p>Th\u1ec3 tích c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng có c\u1ea1nh 2,5 cm là: V = 2,5 × 2,5 × 2,5 = 15,625 (cm³).<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-02-12 08:23:12","option_type":"txt","len":2}]}