user-avatar
tga123456
2 năm trước
Cho tam giác ABC cân tại A, gọi M là trung điểm của đường cao AH. D là giao điểm của CM và AB a) Gọi N là trung điểm của BD. C/m: HN // DC b) C/m: AD = $\frac{1}{3}$ AB giúp với, nhanh nha!
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Exercise 1 1. She pays a visit to her parents A. each B. every other day. C. most D. either 2. The house is small. However, there are rooms for my family. A. much B. little 3. I need A. many B. few C. lots D. a little 4. My mother has spent A. a lot of B. many C. few D. lots 5. This is a very boring place to live because there's A. lots of B. many C. any D. little 6. There was hardly A. any B. someC. few D. plenty of 7. She used A. many B. few C. some D. any 8. C. a few sugar to make this cake. D. few money on this handbag. to do. food left by the time we got there. chalk to write on the board. and every one of the flowers has its own colour and smell. A. Each B. Every 9. "How many potatoes do you want?" "Oh, just a please." A. much B. few C. many D. little 10. The grass received so heat. C. Both D. Almost water that it turned brown in the A. many B. few C. little 11. The Smiths had so baseball team. A. many B. much C. little D. few 12. Just think, in A. most B. another D. much children that they formed their own three months it'll be summer again. C. other the exercises in this book. D. every 13. He has finished C. most of D. almost students in my class like watching football. D. Mostly every night. D. most of A. most B. mostly 14. A. Most of B. Most C. Almost 15. We were bitten by mosquitoes C. mostly A. most B. almost all the passengers on the ferry were French. C. Most D. Mostly works properly. 16. A. Almost B. Every 17. We've got two TVs, but C. none D. both of these restaurants are expensive. A. either B. neither 18. A. Both B. Either C. Neither D. Each 19. We tried lots of hotel. of them had any rooms. A. No B. None C. Neither D. Either

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team