1. Bellringer
Find the area and perimeter of the figure.
10m 6m

2. Congruent Triangles
Chapter 5-1

3. Corresponding parts of Congruent Triangles
Triangles that are the same size and shape are congruent triangles.

4. Corresponding parts of Congruent Triangles
If the triangles are congruent, the vertices of the two triangles correspond in the same order as the letters naming them.

5. Cont…
This correspondence of vertices can be used to name the corresponding congruent sides and angles of the two triangles.

6. Definition of Congruent Triangles (CPCTC)
Two triangles are congruent if and only if their corresponding parts are congruent.
CPCTC stands for corresponding parts of congruent triangles are congruent.
Congruence of triangles is reflexive, symmetric, and transitive.