1. Proving Triangles Congruent
Sections

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

3. Proving with SSS
Prove triangle KLM is congruent to triangle NLM

4. Side-Angle-Side (SAS) Congruence Theorem
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 two triangles are congruent.

6. Hypotenuse-Leg (HL) Congruence Theorem
If the hypotenuse and a leg of a right triangle are congruent to the hypotenuse and a leg of a second right triangle, then the two triangles are congruent.

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

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

10. Prove that triangle RST is congruent to triangle VUT

11. Quick reference on pg. 252
These are the only 5 ways to prove triangles are congruent
There is no SSA or AAA.

12. Assignment pg. 237 #1-4, 16-19 pg. 243 #3-8, 20-22