Choose the one alternative that best completes the statement or answers the question. Solve the problem.
-Find the measure of an angle if its supplement measures 50° less than 3 times its complement.
A) 166°
B) 20°
C) 83°
D) 10°

Question

Quizplus · Accepted Answer

Let the angle be x. Its supplement is 180° - x, and its complement is 90° - x. According to the problem, the supplement is 50° less than 3 times the complement: 180° - x = 3(90° - x) - 50°. Solving this equation gives x = 20°.

Choose the One Alternative That Best Completes the Statement or Answers