Question

Angles R and S are complementary. The measure of angle R is 31 degrees. Which equation can be used to find angle S?

Answer 1

31+S = 90

S = 51

Explanation:

Complementary angles add to 90 degrees

R+S = 90

We know R =31

31+S = 90

Subtract 31 from each side

31-31 +S =90-31

S = 59