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anjustin963
1 năm trước
Câu 3 Trên cùng một nửa mặt phẳng bờ chứa tia Ox vẽ các tia Oy, Om, On sao choxoy=50độ ,xom=90 độ ,xon=130 độ a) Tính số đo góc yOm, số đo góc mOn và nêu nhận xét b) Vẽ tia Ot là tia phân giác của góc xOy rồi tính góc mOt?
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