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misslethihongnhung
2 năm trước
vẽ đường thẳng xy,trên đường thẳng xy lấy điểm A và B phân biệt . TRên đoạn thẳng AB lấy điểm M và N sao cho N nằm giữa A và M , ( M nằm giữa N và B ) a, hai tia MN và AB là hai tia đối nhau hay trùng nhau ? hai tia MA và MB là hai tia đối nhau hay trùng nhau ? b, hãy nêu tên các đoạn thẳng tạo thành trên hình vẽ ? vẽ hộ mk hình nha
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