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giapthimai03
2 năm trước
Cho ΔABC vuông cân tại A, M là trung điểm của cạnh BC. Điểm E nằm giữa MC. Vẽ BH ⊥ AE, CK ⊥ AE. Chứng minh rằng: a) BH = AK b) ΔHBM = ΔKAM c) ΔMHK vuông cân các bạn khỏi vẽ hình các bạn làm đi mình cần gấp chỉ cần làm thôi cảm ơn trước
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