Jill left out a statement from the proof shown. Which statement is best explained by the alternate interior angles theorem?

1 answer

The statement "Line AB is parallel to line CD" is best explained by the alternate interior angles theorem. This theorem states that if two parallel lines are intersected by a transversal, then the alternate interior angles formed are congruent. Therefore, if line AB is parallel to line CD, then the alternate interior angles formed by the intersection of these two lines are equal.