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dumbedumlol
2 năm trước
Trên cùng 1 nửa mặt phẳng bờ chứa tia ox, vẽ hai tia oy,oz sao cho góc xoy=40°, góc xoz=80° .Trong 3 tia ox,oy,oztia nào nằm giữa hai tia còn lại?. Tính số đo của góc yoz? . Chứng minh rằng tia oy là phân giác của góc xoz .Các bạn giúp mình vẽ hình nữa nha mình đang cần gấp
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