Triangle A B C is shown. The length of side A is 12 inches, the length of side B is 6 StartRoot 3 EndRoot, and the length of side C is 6 inches. What are the angle measures in triangle ABC? m∠A = 90°, m∠B = 30°, m∠C = 60° m∠A = 60°, m∠B = 90°, m∠C = 30° m∠A = 90°, m∠B = 60°, m∠C = 30° m∠A = 60°, m∠B = 30°, m∠C = 90°