Cho tam giác ABC cân tại A. Gọi D là điểm thuộc AC; E là điểm thuộc đường thẳng AB, với B nằm giữa A và E, sao cho CD = BE. Gọi M là giao điểm của DE và BC. Chứng minh rằng : M là trung điểm của DE.

Các câu lần lượt là E F G ( Nhào zô)

Làm giúp mik vs ạ Mik cho5 sao lun

cho Δ MPQ có đg cao PR và QS a) CM:MP.MS=MQ.MR b) CM: Δ MRS đồng dạng với Δ MPQ Giúp MÌnh với

1. Felix/ phone/ the fire brigade/ when the cooker/ catch/ fire ____________________________________________________________________________________ 2. when the starter/ fire/ his pistol/ the race/ begin ____________________________________________________________________________________ 3. he/ sit/ in the garden/ when/ a wasp/ sting/ him/ on the nose ____________________________________________________________________________________ 4. while/ he/ run/ for a bus/ he/ collide/ with a lamp post ____________________________________________________________________________________ 5. Vicky/ have/ a beautiful dream/ when/ the alarm clock/ ring ____________________________________________________________________________________ 6. when/ Alex/ see/ the question/ he/ know/ the answer/ immediately ____________________________________________________________________________________ 7. the train/ wait/ when/ we/ arrive/ at the station ____________________________________________________________________________________ 8. Sarah/ have/ an electric shock/ when/ she/ touch/ the wire ____________________________________________________________________________________ 9. when/ the campers/ wake/ they/ see/ the sun/ shine ____________________________________________________________________________________

Exercise 2: Find the mistakes and correct them 1. If Lucia had been here now, she would find out the truth about her uncle's accident. A B C D 2. Unless we leave a bowl of water under the sun, it will evaporate. A B C D 3. If I had knew the time when the match started, I would have told you. A B C D 4. If I am 10 centimeters taller, I would play basketball. A B C D 5. If the doctors could find in the remedy, a lot of people would be saved. A B C D 6. If I had realized that the traffic lights were red, I would stop. A B C D 7. What you would do if you could speak French well? A B C D 8. If I had known he is not at home, I wouldn't have gone all the way to his house. A B C D 9. If had I known you were in financial difficulty, I would have helped you. A B C D 10. If I were you, I will go to the dentist's and have the tooth checked. A B C D 11. If you hadn't left the car unlocked, it wouldn't have be stolen. A B C D 12. What would happen because I pressed that red button? A B C D 13. If the weather is fine today, we would go to the beach. A B C D 14. If you will study harder, you will surely pass the coming exams with good results. A B C D 15. If the weather weren't too bad, we would to go swimming. A B C D 16. If he weren't too old, he would apply to the job as a war reporter. A B C D 17. If drivers obeyed the speed limit, fewer accidents occur. A B C D 18. If I would have studied Russian at school, I would have understood him easily. A B C D 19. If tomorrow the weather will be bad, the match will be postponed. A B C D 20. If you saw Mike today, please ask him to phone me. Mn người tìm lỗi sai và sửa hộ e vs ạ

Vẽ logo hoidap247. Xấu = bc Ko vừa ý cx bc

Có 2 cái bánh như nhau, chia đều cho 3 người. Hỏi mỗi người nhận được bao nhiêu phần bánh?

mảnh vườn này có 50cây hoa và 67cây xanh hỏi có bao nhiêu cây

giúp ạaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa