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Kunphuc123
2 năm trước
Cho tam giác ABC vuông cân tại A. Qua A vẽ đường thẳng d. Gọi D, E theo thứ tự là hình chiếu của B, C trên d. Kẻ DK // BC (K thuộc CE). Chứng minh rằng AE= CK.
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Các câu hỏi liên quan

Bài 6: Dùng "do not" hoặc "does not" để hoàn thành những câu sau 1. I ....... prefer coffee.ví dụ 1. I don't prefer coffee. 2. She ....... ride a bike to her office. 3.Their friends ....... live in a small house. 4. They ....... do the homework on weekends. 5. Mike ....... play soccer in the afternoons. 6. The bus ....... arrive at 8.30 a.m. 7. We ....... go to bed at midnight. 8. My brother ....... finish work at 8 p.m. Bài 8: Hoàn thành các câu sau 1. Robin (play)..........football every Sunday. 2. We (have)..........a holiday in December every year. 3. He often (go)..........to work late. 4. The moon (circle)..........around the earth. 5. The flight (start)..........at 6 a.m every Thursday. 6. Peter (not/ study)..........very hard. He never gets high scores. 7. My mother often (teach)..........me English on Saturday evenings. 8. I like Math and she (like)..........Literature. 9. My sister (wash)..........dishes every day. 10. They (not/ have)..........breakfast every morning.

Chuyển sang bị động : 1. The teacher heard her students talk during the lesson so she reminded them. ………………………………………………………………… 2. We will continue to plant rice this year. ………………………………………………………………… 3. He began to study English at school. ………………………………………………………………… 4. They ought to take care of their health. ………………………………………………………………… 5. I wants to examine my eyesight. ………………………………………………………………… 6. Huy advises me to come earlier. ………………………………………………………………… 7. They begged us to help them. ………………………………………………………………… 8. She will ask them to finish the work. ………………………………………………………………… 9. The cowd was watching the players play. ……………………………………………………………….. 10. People are cutting their money down on electricity. ……………………………………………………………………

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