# SAS

- Author:
- deborahaugust327, Tim Brzezinski

The

**states that**__SAS Triangle Congruence Theorem__**if 2 sides and their included angle of one triangle are congruent to 2 sides and their included angle of another triangle, then those triangles are congruent.**The applet below uses transformational geometry to prove this theorem. Play with the applet then answer the questions that follow. As you do, feel free to move the**BIG WHITE POINTS**anywhere you'd like on the screen!**Questions:**1) What geometry transformations did you observe in the applet above? List them. 2) What common trait do all these transformations have? 3) Go to this link and complete the first 5 exercises in this GeoGebra Book chapter.