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°

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So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.