1. HONORS GEOMETRY 4.4. Proving Triangles Congruent (SSS, SAS)

2. Do Now: Prove that the polygons are congruent by identifying all the congruent corresponding parts. Then write a congruence statement

3. Homework Questions? Comments? Confusions? ASK ASK ASK

4. Well….. That was a pain! It takes so long to figure out whether every single angle and side corresponds to another angle and side. In triangles– is there an easier way?

5. Side-Side-Side (SSS) Congruence If three sides of one triangle are congruent to three sides of a second triangle, then the triangles are congruent.

6. Example One:

7. Example Two:

8. You Try!

9. Included Angle The angle formed by two adjacent sides of a polygon.

10. Included Side Is the side located between two consecutive angles in a polygon.

11. Example Three:

12. Side-Angle-Side (SAS) Congruence If two sides and the included angle of one triangle are congruent to two sides and the included angle of a second triangle, then the triangles are congruent.

13. Example Four: Congruent? Why?

14. Example Four (continued) SAS or SSS?

15. Example Five:

16. You Try!

17. Example Six:

18. Example Seven:

19. You Try!

20. Practice Problems Try some problems on your own/in table groups As always call me over if you have questions!

21. Exit Ticket