Question

(b) An angle measures 77º. What is the measure of its supplement?

Answer 1

103 degrees

Explanation:

Supplementary angles add up to 180 degrees. Thus, the supplement of 77 degrees is (180 - 77) degrees, or 103 degrees.

Answer 2

103

Explanation:

We know supplementary angles equal 180 degrees. So the problem will be: 180 - 77 = 103