Chapter 9



Where's the math?

Have you ever watched a video in slow motion?

The screen in the image shows the position of the butterfly over time. In geometry, a change in the position, size, or shape of a figure is called a transformation.

In this chapter, you'll learn about transformations and apply them to the real world.



Similarity, Right Triangles, and Trigonometry

Big Ideas


Essential Question: How can you change a figure's position without changing its size and shape? How can you change a figure's size without changing its shape?

Coordinate Geometry

Essential Question: How can you represent a transformation in the coordinate plane?


Essential Question: How do you recognize congruence and similarity in figures?

Remind Stream

Wall of Wisdom