Cho điểm M nằm ngoài đường tròn (O). Từ M vẽ hai tiếp tuyến MA; MB (A; B là các tiếp điểm) và một cát tuyến MCD (C nằm giữa M và D; C và A nằm cùng phía với đường thẳng OM). a) Chứng minh: tứ giác MAOB nội tiếp b) Chứng minh: MA2 = MC . MD c) Vẽ đường kính AE, CE và DE lần lượt cắt OM tại K và F. Chứng minh : OK = OF

Chúng ta cần làm gì để bảo vệ tốt hệ sinh thái ?

Mn làm giúp e với ạ, em đang cần gấp :(((

Vẽ Park Chaeng (Blackpink) nha Anime,chibi,chân dung đều đc

một số tự nhiên có hai chữ số. Chữ số hàng đơn vị gấp 3 lần chữ số hàng chục Nếu thêm chữ số 5 xen vào giữa hai chữ số ấy thì được số mới lớn hơn số ban đầu là 220. Tìm số ban đầu

cho tam giác ABC là tam giác vuông tại A . Đường cao AH (H thuộc BC ) . Đường tròn đường kính AH cắt 2 cạnh AB, AC theo thứ tự tại K,I A) cmr AH=IK và tứ giác BKIC nội tiếp b) qua điểm A kẻ đường thẳng vuông góc với KI cắt BC tại M . tính độ dài AM biết AB=3 AC=4

1.Kênh đào Panama ở Trung và Nam Mĩ được nối liền với 2 đại dương nào? 2.Châu Phi ko tiếp giáp với đại dương nào? 3.Công nghiệp nào chiếm ưu thế trong các nghành công nghiệp Bắc Mĩ 4.Điểm ko đúng với vai trò của kênh đào Panama ở eo đất Trung Mĩ là gì?

Exercise 2: Combine these sentences using: though, although, even though 1. Lion dancing is very popular in Viet Nam. My friend Anny does not enjoy it. => 2. Bob always walks to work. He is living in the city. => 3. My house is near the beach. I rarely go swimming. => 4. My brother is working in Ha Noi. He comes home on every public holiday. => 5. Paul is an Australian, he enjoys Vietnamese New year. => 6 Most children go to see the firework show, Linh and Mai stay home watching TV. => 7. Nick used to smoke. He seems to be in good health. => 8. I couldn’t sleep. I was tired. => 9. Henry’s friend is a millionaire. He hates spending money. => 10. We couldn’t get tickets. We queued for an hour. Exercise 4: Rewrite the sentences with the word given. 1. Although he has a very important job, he isn’t particularly well-paid. =>In spite of 2. Although I had never seen her before, I recognized her from a photograph. => Despite 3. She wasn’t wearing the coat although it was quite cold. =>In spite of 4. We thought we’d better invite them to the party although we don’t like them very much. => Despite 5. Although I didn’t speak the language, I managed to make myself understand. =>In spite of 6. Although the heat was on, the room wasn’t warm. => Despite 7. I didn’t recognize her although I’d met her twice before. =>In spite of 8. We’re not very good friends although we’ve known each other a long time. => Despite 9. Although Minh was ill, he still came to the meeting. =>In spite of 10. Although he promised that he wouldn’t be late, he didn’t arrive until 9 o’clock. => Despite 11. Although the salary was low, he accepted the job. => Despite 12. In spite of their quarrel, they remain the best of friends. => Though 13. In spite of the bad weather, they went out for dinner. => Although 14. In spite of his age, he still leads an active life. => Even though 15. In spite of his hard work, Ba he failed his exam. => Though 16. In spite of the heavy rain, we decided to go to see the match. => Although 17. Although they lost, the home team played very well. => Despite 18. Even though it was raining, I still went to school on time. =>In spite of 19. Although she isn’t brilliant, she studies quite well. => Despite 20. She isn’t brilliant but she studies quite well. => Although 21. The house isn’t nice, but I like the garden. => Even though 22. It was raining, but we went out. => Though 23. Everyone likes Bob even though he talkative. => Even though 24. Though I had an umbrella, I got very wet in the rain. => Though 25. We enjoyed the vacation although it rained a lot. => In spite of 26. Although she doesn’t earn much money, she spends like a millionaire. => Despite 27. Tom will not pass the examination although he studies well. => In spite of 28. He is still fat though he has been on a diet for 2 years. => In spite of 29. Although his English was good, he wasn’t chosen. => However 30. Although Judy was severely disabled, she participated in many sports. => Despite 31. It doesn’t matter how hard she tries, she never beat Sue at tennis. => However 32. No matter what he says, nobody believes him. => Whatever 33. He always woke up early no matter how late he had gone to bed. => However 34. Melissa’s father was very busy, but he still played with her. => Busy 35. She didn’t eat much though she was hungry. =>In spite of 36. Although he had much experience in machinery, he didn’t succeed in repairing this machine. => Despite 37. We did the test well though it was difficult. =>In spite of 38. Although he is strong, I’m not afraid of him. => Despite

làm giúp mik vs ah mik đg cần gấp

13/ that classroom is small That class room........ 14/My school yard ia big My school has..... 15/Is the girl.tall ? Is she....... 16/ her lips arent thin Her.lips ..... 17/Tina doesnt have big brown eyes Tina's eye....... LÀM HẾT 5 SAO HAY NHẤT