Question

A transversal intersects two lines .Which of the following condition would always make the two lines parallel.
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Answer 1

Answer:

First, if a transversal intersects two lines so that corresponding angles are congruent, then the lines are parallel. Second, if a transversal intersects two lines so that interior angles on the same side of the transversal are supplementary, then the lines are parallel.Vertical angles are congruent. Alternate interior angles are congruent.