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hoanglong2001
2 năm trước
Cho tam giác ABC có AB = 12cm, BC = 45cm, CA = 45cm. Biết tam giác ABC đồng dạng với tam giác A'B'C' và chu vi tam giác A'B'C' là 68cm. Tính độ dài các cạnh của tam giác A'B'C'. A'B' = cm. B'C' = cm. C'A' = cm.
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