Question

Angles R and S are supplementary, with the measure of R equal to 125°. What is mS?
A. 35°
B. 55°
C. 145°
D. 150°

Answer 1

Answer:

Angle R = 55°

Step-by-step explanation:

Supplementary angles are two angles that add up to 180°.

Angles R and S add up to 180° since they’re supplementary

Angle R = 125° so…

To find the measure of R, subtract 180° - 125°

180° - 125° = 55°