The complement of an angle is equal to half of the angle. Find the degree of the angle

The complement of an angle is equal to half of the angle. Find the degree of the angle

Let the degree of this angle be a:
Then the complementary angle of this angle is 180 ° - A,
So:
180° -a=1/2 a
3/2 a=180°
a=120°
The degree of this angle is 120 degrees