Given that lines a and b are parallel, what angles formed on line a when cut by the transversal are congruent with ∠7? A) ∠1 and ∠2 B) ∠1 and ∠3 C) ∠2 and ∠3 D) ∠2 and ∠4
the answer is B) ∠1 and ∠3 proof 1 and 7 are altern intern corresponding angles 1 and 3 are opposite angles, so 3 also is congruent with seven look at the image