1. 4-6 Congruence in Right Triangles M.11.C.1 2.9.11.B
Objectives:
1)To prove triangles congruent by the HL Theorem.

2. Vocabulary **ONLY IN RIGHT TRIANGLES
Hypotenuse- Side opposite of the right angle, its the longest side.
Legs – the two sides that surround the right angle.

3. Hypotenuse-Leg (HL) Theorem
If the hypotenuse and the leg of one right triangle are congruent to the hypotenuse and a leg of another right triangle, then the triangles are congruent.

4. Example
Which two triangles are congruent by the HL Theorem? Write a congruence statement.

5. Example
Can you prove the two triangles are congruent using the HL Theorem?

6. Example: Yes/No Congruency

7. Class Work
Page 219 #1,2, 5-8, 14, 15
Page 233 #10-27, Handed-In