Question

In a right triangle,one of the acute angle is four times the other, then it's other angle is​

Answer 1

Answer:

Let the three angles of the triangle be A,B,C and let B = 90°

A + B + C = 180

A + C = 90°

A + 4A = 90

5A = 90

A = 18°

C = 72°

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