Question

A pair of parallel lines is cut by a transversal, as shown:

(I'll put attachment below)

Which of the following best represents the relationship between angles A and B?
A = B
A = 180 degrees − B
B = 180 degrees − A
A = 2B

Answer 1

A = B because of the law of opposite exterior angles (I think, angle geometry was a while ago, lol.) Answer's right, at least, you can check by using the opposite angles and co-interior angles.

Answer 2

thx!