The measure of an angle is 7°. What is the measure of a supplementary angle?

The supplement of an angle is the angle that, when added to the origonal angle, the sum is 180

complementary is 2 angles that add to 90

supplementary is 2 angles that add up to 180 so

7+x=180

subtract 7 from both sides

x=173

the angle is 173

The answer is 173 degrees. Proof:

Supplementary angles add up to 180 degrees,

so to find the answer do 180-7=173 degrees