Question

if a transversal cuts two parallel line then to prove the alternate angles are equal​

Answer 1

Answer:

Theorem 4: If a transversal intersects two parallel lines, then each pair of interior angles on the same side of the transversal is supplementary. ... We know that if a transversal intersects two lines such that the pair of alternate interior angles are equal, then the lines are parallel. Hence, AB║CD Proved.

Answer 2

Step-by-step explanation:

If a transversal intersects two parallel lines, then each pair of interior angles on the same side of the transversal is supplementary. ... We know that if a transversal intersects two lines such that the pair of alternate interior angles are equal, then the lines are parallel. Hence, AB || CD Proved.