In △ ABC, the angle c = 90 ° (4) if a: B = 3:4, C = 15cm, then what is a equal to? What is B equal to?

According to the meaning of the question, let a = 3x, B = 4x, then according to the Pythagorean theorem, there are: (3x) + (4x) = 15 solutions, so x = 3, a = 9, B = 12

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