Answer
Explanation
AB is parallel to CD and then, there's a transversal that cuts across the two lines. We are given that Angle 3 = 120°
But we ca see from the figure that Angle 3 and Angle 2 lie on the same straight line.
And we know that the sum of angle on a straight line is 180°.
Hence,
(Angle 3) + (Angle 2) = 180°
120° + Angle 2 = 180°
Angle 2 = 180° - 120°
Angle 2 = 60°
Then again, we can see that AAA
