user-avatar
phkhanhhuyen2812
2 năm trước
Cho hình chữ nhật ABCD, AB=10, BC=9. Đặt DE=x.Tính diện tích Tam giác EFC theo x và tìm x sao cho diện tích Tam giác EFC lớn nhất
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

các bạn giúp mình với ạ :< chọn đáp án A B C D It was only a small fire and I managed to put it ………………… with a bucket of water. A. on B. down C. out D. up Timmy doesn’t do well in school ………………… his inability to concentrate on any one thing for longer than a minute or two. A. despite B. because C. because of D. so Be positive! You must never …………………! A. fall out B. give away C. give up D. keep on I talked to Anna throughout the evening, ………………… nothing I said changed her opinion. A. so B. otherwise C. and D. yet We need to make a decision today at the latest. We can’t ………………… any longer. A. carry it out B. put it off C. turn it up D. break it up This train ticket is ………………… for three months. A. valuable B. employable C. sevicable D. valid The station platform was crowded ………………… people waiting for the train. A. of B. about C. at D. with I ………………… my camera recently. June was the last time I ………………… a photo. A. don't use/ took B. haven't used/ took C. haven't used/ take D. didn't use/ take The teacher devoted himself ………………… his students. A. to B. on C. for D. at Time goes ………………… very slowly when we are waiting. A. over B. by C. away D. out Mình cần gấp cảm ơn nhiều ạ

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