Use Geogebra to

- create similar polygons,
- compare the scale factor of a dilation with the side lengths of the image and preimage
- compare the scale factor with the ratio of the perimeters
- compare the scale factor with the ratio of the areas

A written version of the investigation is below.

To see a modified version of this exploration (with check boxes to show/hide the ratios) see https://www.geogebra.org/m/ymm4V3XS

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