1.  Alternate interior angles  congruent  Same side interior angles  supplementary

2.  Alternate interior angles:  Parallel lines imply alternate interior angles are congruent.  Same side interior angles:  Parallel lines imply same side interior angles are supplementary Angles on alternating sides of the transversal between the two lines Angles on the same side of the transversal between the two lines.

3.  The angle of incidence is equal to the angle of reflection....  Why?

5.  STATE THE NAME AND THE RELATIONSHIP FOR EACH.