Use the Law of Sines to find the missing angle of the triangle. Find angle B given that C = 83, A = 44, and angle A = 31.A. 2.7°B. 15.8°C. 164.2°D. 76.3°

∠C = arcsin(83/44*sin(31°)) = 76.3°

∠B = 180° -31° -76.3° = 72.7° . . . . . . . probably matches selection A

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There is another solution:
∠C = 180° -76.3° = 103.7°

∠B = 180° -103.7° -31° = 45.3° . . . . . not an offered choice