1. Hypotenuse – Leg Congruence Theorem: HL

2. Hypotenuse-Leg Theorem (HL)
If the hypotenuse and leg of a right triangle are congruent to the hypotenuse and leg of a second triangle, then the two triangles are congruent. A M
hypotenuse
leg
leg
hypotenuse P N
leg C B
leg

3. OR A M hypotenuse leg hypotenuse P N C B leg A M hypotenuse leg

4. Examples: Determine if the triangles are congruent
Examples: Determine if the triangles are congruent. State the postulate or theorem.

5. Postulates and Theorems We Know Now:
- three sides
- two sides & the included angle
- two angles and the included side
- two angles and the non-included side
- hypotenuse and leg of a right triangle
SSS
SAS
ASA
AAS HL