Question

OA) 30°
O B) 60°
D) 50°
OC) 90°

Answer 1

A) 30°

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°