một mảnh vườn hình thang có đáy bé 17m, ciều cao 14m. Người ta chia mảnh vườn thành hai phần. Biết phần thứ nhất là hình tam giác có diện tích là 21m vuông. Phần còn lại là hình bình hành. Tính diện tích cả mảnh vườn đó

Các câu hỏi liên quan

VII. Rewrite the sentences so that it has a similar meaning to the first one 1. This is my house. => This house is mine 2. Class 7E has more students than class 7A. => Class 7A has fewer students than class 7E 3. The students will use public transport. => Public transport will be used by the students 4. Although she eats lots of food, she is still very slim. => In spite of 5. My brother collects more stamps than you. => You ________________________________________________________ 6. This is our school. => This school ____________________________________________________ 7. My sister will clean the floor. => The floor _____________________________________________________ 8. Although she eats lots of food, she is still very slim. => Despite __________________________________________________ 9. We will use less electricity in the future. à Less electricity …………………………............................................................... 10. Is hunger spreading all over the world? àHunger is................................................................................................ 11. The distance from my house to the city theater is 300 meters. à It is…………………………………………..……………..…… 12. Although they are short, they still like playing basketball. àIn spite of ………………………………………… 13. Minh rode his bike to school when he was small. à Minh used………………………… 14. Japan will show intelligent robots to the world next month. à Intelligent robots…………………………………… 15. You forgot to turn off the lights, didn’t you? à You didn’t remember ……………………………… 16. I think you should do more exercise. à Why don’t…………………………… 17. Though she eats a lot of vegetables, she doesn’t lose her weight. à In spite of…………………………………… 18. In spite of being so young, Tien Dung goalkeeper performs excellently. àAlthough………………………………………………………………………… 19. I suggested going to Quy Nhon next week. àWhy don’t ……………………………………………………… 20. I drink a little coffee but my father drinks much coffee. (less) → 21. Mr. John bought a new apartment last year, didn’t he? (buy) → 22. The children like to watch the cartoon. (enjoy) → 23. We live in the same street. We hardly see each other. (Despite) → 24. I drink a little coffee but my father drinks much coffee. (more) → 25. Ms. Trang teaches Math in your class, doesn’t she? (teach) → 26. My idea is not different from your idea. (the same) → 27. Son Tung is a famous singer. We hardly listen to his songs. (Although) → 28. He was sick. He did the exam very well. (However) →