The sum of an angle and its complement =90°
The angle is 59°; its complement is 31°
Explanation:
Given measure of an angle is 28 degrees greater than its complement.
By definition the sum of an angle and its complement =90°
Let the angle be x
The angle's complement must be x−28° (from the given information)
x+(x−28°)=90° or

2x= 118° or

x= 59° or

So the angle is 59° and its complement is 59°−28°=31°
