What is the measure of
A. 135°
B. 55°
C. 35°
D. 65°

Answer:
∠B = 55
Step-by-step explanation:
∠A + ∠B + ∠C = 180 {Angle sum property}
35 + ∠B + 90 = 180
∠B + 125 = 180
∠B = 180 - 125
∠B = 55