1. DO NOW!!!
Solve for “x”.

2. Triangle Congruence

3. SSS: Side Side Side
If 3 sides of one triangle are congruent to 3 sides of another triangle, then the triangles are congruent.

4. SAS: Side Angle Side
If 2 sides and the included angle of one triangle are congruent to 2 sides and the included angle of another triangle, then the triangles are congruent.

5. ASA: Angle Side Angle
If 2 angles and the included side of one triangle are congruent to the 2 angles and the included side of another triangle, then the triangles are congruent.

6. AAS: Angle Angle Side
If 2 angles and a non-included side of one triangle are congruent to the corresponding 2 angles and side of another triangle, then the two triangles are congruent.

7. HL: Hypotenuse Leg
If the hypotenuse and leg of one right triangle are congruent to hypotenuse and leg of another right triangle, they are congruent.

8. IMPORTANT!!!
If the congruence theorem spells a bad word, the triangles are not congruent.

9. Guided Practice (CFU) For each pair of triangles below:
Are the triangles congruent?
If so, by what theorem?
If so, write a congruence statement.