Question

I've got another one of these ​

Answer 1

Angle 2 = 45

Explanation:

"The Alternate Interior Angles Theorem states that, when two parallel lines are cut by a transversal , the resulting alternate interior angles are congruent."

This means that angle 1 and angle 3 are equal. This can be shown by drawing a mirrored F.

Since angles on a straight line add up to 180.

Angle 2 + Angle 3 = 180

Angle 2 + 135 = 180

Angle 2 = 180 - 135

Angle 2 = 45