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bahien164
2 năm trước
cho hình vuông ABCD AB = 6cm trên cạnh AB lấy điểm M sao cho AM = 4cm, Qua A kẻ đường thẳng vuông góc với DM tại H cắt cạnh BC tại N a) tính DM MH AH b) tính diện tích tam giác DMN
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