Chapter 5

Relationships Within Triangles


Where's the math?

That's quite a roof of triangles!

It's interesting how the support beams in each triangle meet at one point.

In this chapter, you will learn how special lines and segments in triangles relate.



Similarity, Right Triangles, and Trigonometry

Mathematical Practice: Construct Viable Arguments

Big Ideas

Coordinate Geometry

Essential Question: How do you use coordinate geometry to find relationships within triangles?


Essential Question: How do you solve problems that involve measurements of triangles?

Reasoning and Proof

Essential Question: How do you write indirect proofs?

Remind Stream

Wall of Wisdom