Question

8. What is the measure of an angle if it is 285 less
than four times its own complement?

Answer 1

15°

Explanation:

x = angle

Complement and x sum to 90° so the complement angle = 90 - x

x = 4 ( 90 -x) - 285

x = 360 - 4x - 285

5x = 75

x = 15°