Unit 2 - Lesson 2 - Grade 8: Illustrative Mathematics

What do you notice? What do you wonder?

The center of dilation is point P. What is the scale factor that takes the smaller circle to the larger circle? Explain your reasoning.

What are some things you notice about the new polygon?

Choose a few more points on the sides of the original polygon and transform them using the same dilation. What do you notice?

Dilate each vertex of polygon ABCD using P as the center of dilation and a scale factor of 1/2. Label the image of A as E, the image of B as F, the image of C as G and the image of D as H. What do you notice about polygon EFGH ?