1. Do Now
Find the value of every missing variable:

2. Section 6.6 Perform Similarity Transformations

3. Vocabulary
Dilation: transformation that stretches or shrinks a figure to create a similar figure.
Center of Dilation: the fixed point where a figure is enlarged or reduced from
Scale Factor of a Dilation: ratio of a side length of the image to the corresponding side length of the original figure.

4. Coordinate notation for a dilation

5. Example 1

6. Example 1 continued

7. Example 2

8. Example 2 continued (a)

9. Example 2 continued (b)
Angles C and F are both right angles, so they are congruent.

10. Example 3
You are making your own photo stickers. Your photo is 4 inches by 4 inches. The image on the stickers is 1.1 inches by 1.1 inches. What is the scale factor of the reduction?

11. Example 4

12. Example 4 Continued