Chapter 3

Parallel and Perpendicular Lines

Lessons

Where's the math?

Check out the gymnast on the parallel bars!

Why do you think they are called parallel bars?

You'll learn about properties of parallel lines in this chapter.

Domains

Congruence

Expressing Geometric Properties with Equations

Modeling with Geometry

Big Ideas

Reasoning and Proof

Essential Question: How do you prove that two lines are parallel?

Measurement

Essential Question: What is the sum of the measures of angles of a triangle?

Coordinate Geometry

Essential Question: How do you write an equation of a line in the coordinate plane?

Remind Stream

Wall of Wisdom