Answer:
∠ NSR = 113°
Step-by-step explanation:
the chord- chord angle NSR is half the sum of the measures of the arcs intercepted by the angle and its vertical angle, that is
∠ NSR = [tex]\frac{1}{2}[/tex] ( NR + QP) = [tex]\frac{1}{2}[/tex] (176 + 50)° = [tex]\frac{1}{2}[/tex] × 226° = 113°
