SOLUTION: Two angles are supplementary. The first angle measures 40°. What is the measurement of the second angle? A. 120° B. 60° C. 140° D. 50°

Algebra ->  Angles -> SOLUTION: Two angles are supplementary. The first angle measures 40°. What is the measurement of the second angle? A. 120° B. 60° C. 140° D. 50°       Log On


   

Question 515577: Two angles are supplementary. The first angle measures 40°. What is the measurement of the second angle?

A. 120°
B. 60°
C. 140°
D. 50°

Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
Supplementary angles total 180 degrees.
A = 40%
so
The supplementary angle = 180-40 = 140 degrees.