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hangchambi1995
2 năm trước
Vẽ hình theo các diễn đạt sau: Vẽ góc xÔy = 550 . Lấy điểm M nằm bên trong góc xÔy. Qua M vẽ đường thẳng m vuông góc với Oy tại A . Vẽ đường trung trực n của đoạn thẳng OM
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