# Same Side Interior Angles Theorem

- Author:
- Jerry Gallaher, Tim Brzezinski

- Topic:
- Angles, Straight Lines

In the applet below, a

**TRANSVERSAL**intersects**2 PARALLEL LINES**. When this happens, there are 2 pairs of**SAME-SIDE INTERIOR ANGLES**that are formed. Interact with the applet below for a few minutes, then answer the questions on the handout.