Answer:
a 170 degree angle
Explanation:
Definition of a supplement: Two angles are supplements of each other when adding them together gets 180 degrees.
So 50° and 130° are supplements
90° and 90° are supplements
10° and 170° are supplements
Therefore, to find the supplement of a 5° angle, we have to see what we can add to it to get 180°.
In other words, what's 180° - 5°?
180° - 5° = 170°
so 170° is our answer!