**Chapter 4: Triangle Congruence**

In this chapter we will go further with proofs, learning about coordinate proofs. We will learn to classify triangles by their angles and sides and prove they are congruent. You will learn several new theorems and postulates having to do with the congruence of triangles.

Here are some possibly helpful videos:

**Triangle Song:**

**http://www.youtube.com/watch?v=Qye37PEMUL0**

**Classifying Triangles:**

**http://www.youtube.com/watch?v=P8yJpr-E9K4**

**Angle Side Relationships in Triangles:**

**http://www.youtube.com/watch?v=KSwvdobVwVY**

**Congruent Triangles Song:**

**http://www.youtube.com/watch?v=-NHA3llKB8U**

**CPCTC (Really really good) :**

**http://www.youtube.com/watch?v=Ztqq_RxY0w8**