Question 512025
Really short solution: subtract the second equation from the first.


(Angle 1 + Angle 3 + Angle 4) - (Angle 2 + Angle 4) = 93 - 62 = 31


(Angle 1 - Angle 2) + Angle 3 = 31, since Angle 1 = Angle 2, we get Angle 3 = 31. It turns out that all four angles are equal.