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Mathematics, 11.08.2021 16:10 aroyalstudent

Cho hình vẽ. Biết xy // mn. BC là tia phân giác của ABn . Biết BAC= 110 độ. Tính BCy ?

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Cho hình vẽ. Biết xy // mn. BC là tia phân giác của ABn . Biết BAC= 110 độ. Tính BCy ?...
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