1. HONORS GEOMETRY 4.5. Proving Triangles Congruent (ASA and AAS)

2. Do Now: Are the triangles below congruent? Why or why not?

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

4. So….. Proving triangles are congruent….. We currently have SSS and SAS. Are their others?

5. Angle-Side-Angle (ASA) Congruence If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the triangles are congruent.

6. Example One: Which two triangles are congruent by ASA? Explain your reasoning.

7. Example Two: Are the following triangles congruent by ASA? If so, write a congruence statement.

8. You Try! Are the following triangles congruent? Why or why not?

9. Example Three:

10. You Try! **Why do I dislike the order they chose for the prove part of this proof?

11. Angle- Angle- Side (AAS) Congruence If two angles and the non-included side of one triangle are congruent to the corresponding two angles and side of a second triangle, then the two triangles are congruent.

12. Example Four: Are the following congruent? Why?

13. Example Five:

14. Example Six:

15. You Try!

16. CPCTC

17. Example Seven:

18. Practice Problems Try some on your own/in your table groups As always if you have questions and/or are confused don’t hesitate to ask me and/or your tablemates! They are your greatest resource!

19. Exit Ticket