{"common":{"save":0,"post_id":"8398","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"4410","post_id":"8398","mon_id":"1159414","chapter_id":"1159497","question":"<p>M\u1ed9t hình l\u1eadp ph\u01b0\u01a1ng có di\u1ec7n tích xung quanh là 196 cm². Tính di\u1ec7n tích toàn ph\u1ea7n c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng \u0111ó.<\/p>","options":["<strong>A.<\/strong> 294 dm²","<strong>B.<\/strong> 249 m²","<strong>C.<\/strong> 249 cm²","<strong>D.<\/strong> 294 cm²"],"correct":"4","level":"3","hint":"<p>Tính di\u1ec7n tích m\u1ed9t m\u1eb7t c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng = di\u1ec7n tích xung quanh : 4.<\/p><p>Sau \u0111ó tính di\u1ec7n tích toàn ph\u1ea7n c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng = di\u1ec7n tích m\u1ed9t m\u1eb7t x 6.<\/p>","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> 294 cm²<\/span><\/p><p>Di\u1ec7n tích m\u1ed9t m\u1eb7t c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng là: 196 : 4 = 49 (cm²).<\/p><p>Di\u1ec7n tích toàn ph\u1ea7n c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng là: 49 x 6 = 294 (cm²).<\/p><p>\u0110áp s\u1ed1: 294 cm².<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-02-02 09:21:27","option_type":"txt","len":1},{"id":"4411","post_id":"8398","mon_id":"1159414","chapter_id":"1159497","question":"<p>M\u1ed9t hình l\u1eadp ph\u01b0\u01a1ng có di\u1ec7n tích toàn ph\u1ea7n là 8,64 m². Tính di\u1ec7n tích xung quanh c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng \u0111ó.<\/p>","options":["<strong>A.<\/strong> 5,67 m²","<strong>B.<\/strong> 5,76 dm²","<strong>C.<\/strong> 5,76 m²","<strong>D.<\/strong> 5,67 dm²"],"correct":"3","level":"3","hint":"<p>Tính di\u1ec7n tích m\u1ed9t m\u1eb7t c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng = di\u1ec7n tích toàn ph\u1ea7n : 6.<\/p><p>Sau \u0111ó tính di\u1ec7n tích xung quanh c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng = di\u1ec7n tích m\u1ed9t m\u1eb7t x 4.<\/p>","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>C.<\/strong> 5,76 m²<\/span><\/p><p>Di\u1ec7n tích m\u1ed9t m\u1eb7t c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng là: 8,64 : 6 = 1,44 (m²).<\/p><p>Di\u1ec7n tích xung quanh c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng là: 1,44 x 4 = 5,76 (m²).<\/p><p>\u0110áp s\u1ed1: 5,76 m².<\/p>","type":"choose","extra_type":"shape2","time":"0","user_id":"131","test":"0","date":"2025-02-02 09:25:50","option_type":"txt","len":0},{"id":"4412","post_id":"8398","mon_id":"1159414","chapter_id":"1159497","question":"<p>M\u1ed9t hình l\u1eadp ph\u01b0\u01a1ng có di\u1ec7n tích xung quanh là 36 dm². Tìm \u0111\u1ed9 dài c\u1ea1nh c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng \u0111ó.<\/p>","options":["<strong>A.<\/strong> 9 dm","<strong>B.<\/strong> 3 cm","<strong>C.<\/strong> 9 cm","<strong>D.<\/strong> 3 dm"],"correct":"4","level":"3","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> 3 dm<\/span><\/p><p>Di\u1ec7n tích m\u1ed9t m\u1eb7t c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng là: 36 : 4 = 9 (dm²).<\/p><p>Vì 3 x 3 = 9 nên \u0111\u1ed9 dài c\u1ea1nh c\u1ee7a hình l\u1eadp ph\u01b0\u01a1ng là 3 dm.<\/p><p>\u0110áp s\u1ed1: 3 dm.<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-02-02 09:30:23","option_type":"txt","len":0}]}