1. 4-2 Triangle Congruence by SSS and SAS

2. Notes SSS- side, side, side.
SAS- side, angle, side (MUST BE IN ORDER!!)
We will use these new theorems to prove triangles are congruent without needing to show all sides, and all angles are congruent.

3. Theorem

4. Example 1
Plan: To prove the triangles are congruent by SSS, the three pairs of sides need to be congruent

5. Theorem

6. What does that mean!?!

7. Example 2

8. Example 3
Discuss with someone what you think you need to do to solve this

9. Example 4

10. Practice!
Pg #1-5, 7-11, 14-21, 22-27