user-avatar
Vtn0804
2 năm trước
Bài 2: Cho tam giác ABC vuông tại A có AB = 9cm, AC = 12cm. a) Tính BC. b) Vẽ tia phân giác BM của góc ABC (M AC) . Từ M kẻ MN ⊥ BC tại N. Chứng minh ΔABM = ΔNBM. c) Đường thẳng NM cắt tia BA tại D. Gọi H là trung điểm của cạnh CD. Chứng minh 3 điểm B, M, H thẳng hang
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

I. Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage. Running of The Bulls - Pamplona, Spain The Running of the Bulls is a (1) of the famous San Fermin festival - a practice that involves running in front of a small group of bulls (typically a dozen) that have been let loose on a course of a town’s streets. A first firework is set off at 8 a.m. to alert the runners that the corral gate is (2) . A second firework signals that all six bulls have (3) released. The third and fourth fireworks are signals that all of the herd has entered the bullring, marking the end of the event. Every year between 200 and 300 people (4) injured during the run (5) most injuries are due to falls and are not serious. So you think you support it? 1. A. part B. whole C. section D. piece 2. A. to close B. closed C. open D. opening 3. A. be B. been C. being D. to be 4. A. are B. were C. have been D. had been 5. A. because B. so C. although D. but

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