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ngun891
2 năm trước
Cho tam giác ABC có AE là đường phân giác ứng với cạnh BC (E BC), biết AB = 5cm, AC = 6cm, BE = 3,18cm. Tính EC. mọi người giải hộ mình với mình cần gấp chiều nay , cảm ơn mn trước ạ
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