R N Q 45 45 9. ZQZR is a straight angle. What is the measure of OZS? ABCDE A. 45 B. C. D. S E. 60° 90° 125° 135°
how to solve this?
![R N Q 45 45 9 ZQZR is a straight angle What is the measure of OZS ABCDE A 45 B C D S E 60 90 125 135how to solve this class=](https://us-static.z-dn.net/files/d9f/8b4903bbd8700f14091ff1da41f61b29.jpg)
Answer:
E
Step-by-step explanation:
the angles lying on the straight angle QZR , sum to 180° , then
∠ RZS + ∠ QZS = 180° , that is
45° + ∠ QZS = 180° ( subtract 45° from both sides )
∠ QZS = 135°