Question

Find the angle which is three times of its complementary angle

Answer 1

let the angle be x comp angle is 3x
so x+3x=90
4x=90
x =22.5
and 3x=67.5
angle is22.5 and complementary angle is67.5

Answer 2

3x = 90 - x
4x = 90
x = 90/4 = 22.5°