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hannavuong2109
2 năm trước
1a) vẽ 2 đường thẳng khác nhau đặt tên các góc tạo thành b)viết tên cặp góc đối đỉnh, viết tên các góc bằng nhau 2.a) vẽ góc mon hoặc có số đo bằng 70 độ b) vẽ góc m'on' đối đỉnh viết tên c) vẽ tia phân giác oz của góc mon d) vẽ tia đối oz' của tia oz . Vì sao tia oz' là tia phân giác của m'on' e) viết tên 5 cặp góc đối đỉnh
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