user-avatar
langnamls123
2 năm trước
Cho xOy là góc bẹt . Trên cùng một nửa mặt phẳng bờ là đường thẳng xy vẽ các tia Oz , Ot sao cho góc xOz = 60° , xOt = 120° . a) Chứng tỏ rằng : Tia Oz nằm giữa hai tia Ox và Ot . b) Tính góc zOt c) Tia Ot có phải là tia phân giác của góc yoz hay không ? Vì sao ?
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Kết hợp hai câu lại với nhau dùng đại từ quan hệ. 1. The doctor is with a patient. The patient’s leg was broken in an accident. → 2. Jane is the woman. Jane is going to China next year→ 3. Janet wants a typewriter. The typewriter self corrects. → 4. I found this book last week. The book contains some useful information. → 5. Mr. Bryant’s team has lost the game. He looks very sad. → 6. James wrote an article. The article indicated that he disliked the President. → 7. The director of the program is planning to retire next year. The director graduated from Harvard University. → 8. This is the book. I’ve been looking for this book all year. → 9. William wants to become a judge. William’s brother is a lawyer. → 10. The last record became a gold record. The record was produced by this company. → 11. Checking accounts are very common now. The Checking accounts require a minimum balance. → 12. Felipe bought a camera. The camera has three lenses. → 13. Frank is the man. We are going to nominate Frank for the officer in the school (nominate sb for/to a post = appoint ) 14. She is the woman. I wrote to her. → 15. They’re the people. I was talking about them. → 16. John received a scholarship. John’s grades are the highest in the school. → 17. That is the dog. I was afraid of it. → 18. Mr Cox is the manager. I am phoning for him. → 19. That is the tunnel, He went through it. → 20. She is the lady. He argued with her. → 21. She is the policewoman. The driver spoke to her. → 22. That is the mistake. I am complaining about it. → 23. He is the man. The novel was written by him. → 24. That is the shop. I bought a radio from it. → 25. Mr Cox is the manager. He saw Ann. → 26. Those men saved my life. They pulled from the burning car. → 27. That woman travels everywhere by private plane. She is a millionaire. → 28. That hotel’s near the beach. It’s the most expensive. → 29. Those birds migrate to Antartica. They breed near the North Pole. → 30. He is the criminal. The police are looking for him. → 31. These are the books. I use them in class. →

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