## Lesson 3-1: Angle Relationships

Use this worksheet to investigate angle relationships formed when two non-parallel lines are cut by a transversal.

Created with GeoGebra by Barbara Perez, 2006

## Directions !

If two

**non-parallel lines** are cut by a transversal:

1. Are corresponding angles congruent (have the same measure)?

2. Are alternate interior angles congruent?

3. Are alternate exterior angles congruent?

4. Are vertical angles congruent?

5. Are same-side interior angles supplementary (sum to 180 degrees)?

6. Are same-side exterior angles supplementary?