Question

1. In triangle RST, the measure of ZR=31° and the measure of ZT=57º. Find the measure of ZS.

[A] 147
[B] 121°
[C] 88°
[D] 920

Answer 1

Answer: 92°

Step-by-step explanation: In every triangle, there are a total of 180 interior degrees, meaning if we add up two of the three angles, we can calculate how many degrees we are away from the total 180. 31° + 57° = 88°. Subtract the 88° from 180° and we get 92°.