{"common":{"save":0,"post_id":"8410","level":3,"total":10,"point":10,"point_extra":0},"segment":[{"id":"4551","post_id":"8410","mon_id":"1159414","chapter_id":"1159497","question":"<p>M\u1ed9t chi\u1ebfc h\u1ed9p quà có d\u1ea1ng hình l\u1eadp ph\u01b0\u01a1ng có chu vi \u0111áy b\u1eb1ng 32 cm. Tính th\u1ec3 tích c\u1ee7a h\u1ed9p quà \u0111ó.<\/p>","options":["<strong>A.<\/strong> 32768 cm³","<strong>B.<\/strong> 512 dm³","<strong>C.<\/strong> 384 cm³","<strong>D.<\/strong> 512 cm³"],"correct":"4","level":"3","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>D.<\/strong> 512 cm³.<\/span><\/p><p>\u0110\u1ed9 dài c\u1ea1nh c\u1ee7a h\u1ed9p quà là: 32 : 4 = 8 (cm)<\/p><p>Th\u1ec3 tích c\u1ee7a h\u1ed9p quà là: V = 8 × 8 × 8 = 512 (cm³).<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-02-12 08:44:58","option_type":"txt","len":2},{"id":"4554","post_id":"8410","mon_id":"1159414","chapter_id":"1159497","question":"<p>Bình mu\u1ed1n x\u1ebfp các kh\u1ed1i ru-bích có d\u1ea1ng hình l\u1eadp ph\u01b0\u01a1ng c\u1ea1nh là 5 cm vào m\u1ed9t h\u1ed9p gi\u1ea5y d\u1ea1ng hình h\u1ed9p ch\u1eef nh\u1eadt có chi\u1ec1u dài là 30 cm, chi\u1ec1u r\u1ed9ng là<br \/>25 cm và chi\u1ec1u cao là 15 cm. V\u1eady Bình x\u1ebfp \u0111\u01b0\u1ee3c nhi\u1ec1u nh\u1ea5t s\u1ed1 kh\u1ed1i ru-bích là:<\/p>","options":["<strong>A.<\/strong> 91 kh\u1ed1i","<strong>B.<\/strong> 90 kh\u1ed1i","<strong>C.<\/strong> 80 kh\u1ed1i","<strong>D.<\/strong> 96 kh\u1ed1i"],"correct":"2","level":"3","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>B.<\/strong> 90 kh\u1ed1i<\/span>.<\/p><p>Th\u1ec3 tích c\u1ee7a m\u1ed9t kh\u1ed1i ru-bích là: 5 × 5 × 5 = 125 (cm³).<\/p><p>Th\u1ec3 tích c\u1ee7a chi\u1ebfc h\u1ed9p gi\u1ea5y là: 30 × 25 × 15 = 11 250 (cm³).<\/p><p>S\u1ed1 kh\u1ed1i ru-bích nhi\u1ec1u nh\u1ea5t mà Bình x\u1ebfp \u0111\u01b0\u1ee3c là: 11 250 : 125 = 90 (kh\u1ed1i).<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-02-12 08:52:08","option_type":"txt","len":0},{"id":"4557","post_id":"8410","mon_id":"1159414","chapter_id":"1159497","question":"<p>M\u1ed9t chi\u1ebfc bánh bông lan có d\u1ea1ng hình h\u1ed9p ch\u1eef nh\u1eadt có \u0111áy là hình vuông c\u1ea1nh 13 cm, chi\u1ec1u cao 8 cm. Mai \u0111ã c\u1eaft m\u1ed9t mi\u1ebfng bánh hình l\u1eadp ph\u01b0\u01a1ng c\u1ea1nh 4 cm \u0111\u1ec3 \u0103n. H\u1ecfi th\u1ec3 tích ph\u1ea7n bánh còn l\u1ea1i là bao nhiêu?<\/p>","options":["<strong>A.<\/strong> 1352 cm³","<strong>B.<\/strong> 1228 cm³","<strong>C.<\/strong> 1288 cm³","<strong>D.<\/strong> 1282 dm³"],"correct":"3","level":"3","hint":"","answer":"<p>Ch\u1ecdn <span style=\"color:#16a085;\"><strong>C.<\/strong> 1288 cm³<\/span><\/p><p>Th\u1ec3 tích c\u1ee7a chi\u1ebfc bánh bông lan là: 13 x 13 x 8 = 1352 (cm³).<\/p><p>Th\u1ec3 tích c\u1ee7a mi\u1ebfng bánh b\u1ecb c\u1eaft \u0111i là: 4 x 4 x 4 = 64 (cm³).<\/p><p>Th\u1ec3 tích c\u1ee7a ph\u1ea7n bánh còn l\u1ea1i là: 1352 – 64 = 1288 (cm³).<\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"0","date":"2025-02-12 08:58:06","option_type":"txt","len":2}]}
