user-avatar
nguyendinhmaihong
2 năm trước
Cho ΔABC cân tại A, AB = AC = 5 cm; BC = 8 cm. Kẻ AHĐề kiểm tra 1 tiết học kì 2 môn toán hình học lớp 7BC (H∈BC) a) Chứng minh HB = HC b) Tính AH. c) Kẻ HDĐề kiểm tra 1 tiết học kì 2 môn toán hình học lớp 7AB (D∈AB); HEĐề kiểm tra 1 tiết học kì 2 môn toán hình học lớp 7AC (E∈AC). CMR: ΔHDE là tam giác cân
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

1. Cinema didn't become an industry until 1915. - It was not until. Not until.... 2. My son didn't start talking until he was 5. It was not until.. - Not until.. 3. Lan didn't go abroad until she was 35. It was not until. Not until.. 4. We didn't go to bed until midnight. 11 - It was not until. - Not until... 5. The boy didn't stop singing until their teacher came. It was not until. - Not until. 6. She didn't write to him until she received a letter from him. It was not until.. - Not until. 7. The letter wasn't written until yesterday. It was not until.. - Not until.. 8. We didn't have a holiday until last summer. It was not until... Not until.. 9. We couldn't finish it until the end of last summer. It was not until.. Not until.. 10. The child didn't go to sleep until her mother came home. It was not until... - Not until... Giúp em với mọi người ơi

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