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maichi201004
1 năm trước
Cho tam giác ABC vuông tại A có AB =9cm, AC = 12cm a) tính độ dài BC b) gọi M là trung điểm của BC, trên tia đối của tia MA lấy điểm của AD. cmr tam giac AMB = tam giác DMC c) cmr tam giác ACD vuông Các bạn vẽ hình ra giúp mình với !
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