**Chapter 3 : Parallel and Perpendicular Lines**

In this lesson you will learn all about parallel and perpendicular lines and the angles formed by those and transversals. Lines in a coordinate plane will also be discussed

Check out these videos to gain better understanding:

**Angles in Parallel Lines Song:**

**http://www.youtube.com/watch?v=wDkwZUgL1yU**

**Definitions and Relationships Between Pairs of Angles Formed by Parallel Lines:**

**http://www.youtube.com/watch?v=9tyroQH9ZY8**

**Proving Lines Parallel:**

**http://www.youtube.com/watch?v=nu9ZJt8UlSA**

Square One TV: Perpendicular Lines

Square One TV: Perpendicular Lines

**http://www.youtube.com/watch?v=odqaC9ODMTk**