1. Congruent Triangles
Section 4-3

2. CPCTC Defn. of Congruent Triangles
Two triangles are congruent if and only if their corresponding parts are congruent

3. Congruence of triangles is reflexive, symmetric, and transitive.
Theorem 4-4
Congruence of triangles
is reflexive, symmetric,
and transitive.

4. Congruence Transformations
If you slide, flip, or turn a triangle, the size and shape do not change.

5. Who invented the round table?
Joke Time
Who invented the round table?
Sir Cumference

6. How does a cow add?
With a cow-culator