Answer:
∠ WXY = 59°
Step-by-step explanation:
The sum of the 3 arcs in the circle = 360°, thus
arc WY = 360° - (156 + 86)° = 360° - 242° = 118°
The measure of the inscribed angle WXY is one half the measure of its intercepted arc, thus
∠ WXY = 0.5 × 118° = 59°
