# Corresponding Angles Postulate

The Corresponding Angles Postulate states that, when two parallel lines are cut by a transversal, the resulting corresponding angles are congruent.

So, in the figure below, if l || m, then 1 2.

The converse is also true; that is, if two lines l and m are cut by a transversal in such a way that the corresponding angles formed are congruent, then l || m.