OA) 30°
O B) 60°
D) 50°
OC) 90°
![OA 30 O B 60 D 50 OC 90 class=](https://us-static.z-dn.net/files/d02/121051fd9e41823aa0fb66dc20e006c7.png)
Answer:
A) 30°
Step-by-step explanation:
Sum of three angles of a triangle = 180°
75° +75° + ∠WYZ = 180°
Add like terms
150° + ∠WYZ = 180°
Subtract 150°from both sides
∠WYZ = 180 - 150
∠WYZ = 30°