Dilation of a Rectangle
- Click on the “Show Lines” box. Make the following changes and pay attention to the relationship between the two lines. [list=2]
- Change the scale factor. Be sure to look at values greater than 1 and values less than 1, as well as a scale factor of 1. You can even try some negative scale factors.
- Drag the Center to different locations. Put it to the left of both lines, inside the original triangle, on line AB, and to the right of both lines.
- Finally, drag some of the vertices of the original triangle that form one of the lines (A and B) to different locations. Try putting either in the same place as the Center.