1. Section 21.2: AAS Triangle Congruence

2. Objective:
By following instructions, students will be able to:
Use the AAS Triangle Congruence Theorem.

3. RECALL: If sides are congruent and angles
are congruent, then triangles are congruent.

4. Angle-Angle-Side (AAS) Congruence Theorem

5. explain 1
Prove the AAS Congruence Theorem

6. explain 2A
Use the AAS Theorem to prove the given triangles are congruent.

7. explain 2B
Use the AAS Theorem to prove the given triangles are congruent.

8. Your-Turn #1

9. explain 3A
The triangular region represents plots of land. Use the AAS Theorem to explain why the same amount of fencing will surround either plot.

10. explain 3B
The triangular region represents plots of land. Use the AAS Theorem to explain why the same amount of fencing will surround either plot.

11. Your-Turn #2

12. Revisit Objective:
Did we…
Use the AAS Triangle Congruence Theorem?

13. HW:
Sec 21.2 pg 855 #s 1-19 ODD