Question

Two angles are complementary. One angle measures 60 degrees. What is the measure of the other angle?

I'm not sure if its A.

Answer 1

Answer: A

Explanation:

Complementary angles sum up to 90 degrees. Thus, we can write that:

90=angle1+angle2

90-angle1=angle2

90-60=angle2

angle2=30

Answer 2

30

Explanation:

Complementary angles add to 90

x+60 = 90

x+60-60 = 90-60

x = 30