1. Module 14: Lesson 3 Proving Lines are Parallel

2. Converse of the Same-Side Interior Angles Postulate
If 2 lines are cut by a transversal such that same-side interior angles are supplementary, then the 2 lines are parallel. t p 3 4 5 6 q

3. Converse of the Alternate Interior Angles Theorem
If 2 lines are cut by a transversal such that alternate interior angles are congruent…or have the same measure, then the 2 lines are parallel. t p 3 4 5 6 q

4. Converse of the Alternate Exterior Angles Theorem
If 2 lines are cut by a transversal such that alternate exterior angles are congruent…or have the same measure, then the 2 lines are parallel. t 1 2 p q 7 8

5. Converse of the Corresponding Angles Theorem
If 2 lines are cut by a transversal such that corresponding angles are congruent…or have the same measure, then the 2 lines are parallel. t 1 2 p 3 4 5 6 q 7 8

6. Homework pages 705-708 #1-12, 15, 16 (all)