Given that the remainder of an acute angle is 3 / 7 of its complement, find the complement degree of the acute angle

Let this angle be a
Then: the residual angle is 90 ° - A and the complementary angle is 180 ° - A
According to the meaning of the title: 90 ° - a = 3 (180 ° - a) / 7
The solution is a = 22.5 degree
180°-22.5°=157.5°
A: the complementary angle is 157.5 degrees
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