Activity: Exploring a Dilation
Dilation
1. Explore the effect scale factor has on the dilation of the image below.
Increase or decrease the scale factor using the scroll bar (e).
What happens when the scale factor >1? When the scale factor <1?
2. Make the scale factor 0.5 or 2. Use the measuring tool to measure the side lengths of the pre-image and image. What do you notice?
3. Measure the angles of the pre-image and image. What do you notice?
4. What effect does moving point E have?