user-avatar
maitrinh
2 năm trước
Giúp em với ạ giúp em cái hình luôn ạ Cho đường tròn (O;R) và dây cung BC không đi qua tâm . Lấy điểm A trên tia đối của tia BC (A khác B ) . Từ A vẽ hai tiếp tuyến AM ,AN với đường tròn (O;R) sao cho M nằm trên cung nhỏ BC (M,N là hai tiếp điểm ) . Gọi I là trung điểm BC chứng minh 5 điểm A,M,N,O.I cùng thuộc một đường tròn
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

IX.Make questions for the underlined part.(5) 1. Minh brushes his teeth twice a day. ………………………………………………………………………………………………………… 2. Simon is in a lot of pain now because he has a toothache. …………………………………………………………………………………………………………… 3. I felt sick after eating that food. …………………………………………………………………………………………………………… 4. Nga went to see the dentist last week. …………………………………………………………………………………………………………… 5. It took Dr Phong 10 minutes to fill Van’s tooth. …………………………………………………………………………………………………………… X.Complete the second in such a way that it is almost the same as the first(10) 1. Listening to music is more interesting than watching TV. I prefer ………………………………………………………………………..…………… 2. How heavy is the chicken ? What……………………………………………………………………………..…………… 3. I can’t go to the party tonight night because I am very busy. If …………………………………………………………………..….… 4. You shouldn’t forget to write to your parents. You’d …………………………………………………………………….……..…………… 5. It rained hard this morning but we went to school early. Although …………………………………………………….…….… 6, We should get up early everyday. He advised ………………………………………………………………………..…………… 7. The boys had to stop playing soccer because it started to rain heavily. Because of …………………………………………..……………….… 8, We didn’t enjoy the trip because of the heavy rain. The heavy rain prevented ……………………………………………..…..……………… 9, You shouldn’t eat too many candies. You had ………………………………………………………………………………… 10.Lan didn’t go to school yesterday because of her sickness. Because Lan………………………………………………………………..………… XI.Use the suggested words and phrases to write complete sentences (5p) 1. Ba / to / go / school / foot / a week ago. ……………………………………………………………………………………………………….. 2.Father/ mechanic/. He/ work/ factory/ suburb. ……………………………………………………………………………………………………….. 3. Last night / we / do / homework / 7.00 / and / go / bed / 9.30. ……………………………………………………………………………………………………….. 4. We / used / walk / school / morning / return / noon. ……………………………………………………………………………………………………….. 5. I / call / tell you / that / we / come / visit / you / next weekend. ………………………………………………………………………………………………………..

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