user-avatar
chuyennguyen0601
2 năm trước
Trên cùng một nửa mặt phẳng bờ chứa tia OA vẽ các tia OB và OC sao cho AOB bằng 40° AOC bằng 140° gọi OD là tia đối của tia OC .Hãy chứng tỏ rằng tia OA là tia phân giác của tia BOD
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

1. My wedding ring..............of yellow and white gold. A)is made B)is making C)maked D)made 2. If your brother.................., he would come. A)invited B)were invited C)were inviting D)invite 3. References................... in the examination room. A)not are used B)is not used C)didn't use D)are not used 4. Mary.....................in Boston. A)are born B)were born C)was born D)born 5. My mother is going...................this house. A)sold B)to be sold C)to sold D)to sell 6. There's somebody behind us. I think we are............... A)being followed B)are followed C)follow D)following 7. Have you......................by a dog? A)bite B)ever been bit C)ever been bitten D)bit 8. The room is being.....................at the moment. A)was cleaned B)cleaned C)cleaning D)clean 9. The road to our village.....................widened next year. A)is B)will C)can D)will be 10. The old lady was..............exhausted after the long walk. A)very B)absolutely C)pretty D)fairly

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