user-avatar
Nttt2699
2 năm trước
cho tam giác ABC cân tại A, đường cao AH, D là 1 điểm trên AB, I là hình chiếu của D trên BC, lấy K trên HC sao cho HC=BI, đường vuông góc với DK tại K cắt AH ở G. CM : HG/HC=BH/AH
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

1. Have you ever considered………….(go) to live in the countryside? 2. The doctor advised ………….(walk) to school every day. He also advised me………..(cut) down on fatty foods. 3. It started ……………(rain) an hour ago. Has it stopped …………….(rain) yet? 4. I made him……………(promise) ………….(not tell) anybody what happened . 5. I was made ………………….(answer) all the questions by the teacher. 6. I’ve enjoyed ……………………(meet) you. I hope ……………(see) you again. 7. We are discussing ………..(go) out for dinner. Would you like…………..(join) us? 8. It’s no use …………..(try) ………………(persuade ) him. You won’t succeed. 9. They refuse…………...go) out on trips if it’s too hot. 10. I used…………………..(smoke) 20 cigarettes a day, but now I give up............ (smoke).

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