user-avatar
faratrut
2 năm trước
cho tam giác ABC vuông tại A có AB =16 cm, AC=12cm. Kẻ AH vuông góc với BC tại H . Gọi S abc là diện tích tam giác ABC. 1) Tính S tam giác ABC 2) Tính BC,AH 3) Tính BH,CH
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Choose the best answer A, B, C, or D to complete the sentences. 1. Walking to school will help …………….air pollution. A- recycle B- reuse C- reduce D- pollute 2. ……………..pollution can make fish die. A- noise B- water C- soil D- air 3. My future house will be …........the mountains, surrounded …...….many tall old trees. A- in; in B- on; in C- on ; by D- in ; by 4. People in my village are very warm and …........……. A- friendly B- exciting C- polluted D- noise 5. How often do you …...............…karate? - Every Saturday. A- play B- have C- do D- go 6. Watching TV too much is not good …….............…it hurts your eyes. A- so B- although C- but D- because 7. There aren’t …………. good films on TV at the moment. A. some B. any C. much D. a lot 8. They have been in love with each other …………. they were young. A. while B. until C. for D. since 9. The Nile River is the …………. River in the world. A. high B. longest C. longer D. highest 10…………. the film is late; I will wait to watch it. A. Because B. Although C. When D. But II. Supply the correct tense or form of the verbs in parentheses. 1. The weather was very nice. They (can) …………………..go on a picnic. 2. I have to go to a meeting tomorrow night so I (can not) ................................. come to your party. I’m very sorry. 3. My father and I (be) ………………………….to Da Lat twice. 4. When ……………you (buy) ……………..that car? – Two months ago. 5. If Lan (study) ……………………..hard, she (pass) ……….…………the exam.

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