Dilations

Front

What is a dilation?

Back

A transformation that alters the size of a figure but not its shape.

Front

Does a dilation produce a congruent figure?

Back

No, a dilation does not produce a congruent figure; it produces a similar figure.

Front

What is the term for the figure after a transformation?

Back

Image.

Front

What is the term for the figure before a transformation?

Back

Pre-image.

Front

What happens when a dilation has a scale factor greater than one?

Back

The figure is enlarged.

Front

What happens when a dilation has a scale factor less than one?

Back

The figure is reduced.

Front

If the scale factor (SF) is 0.6, what type of dilation is it?

Back

Reduction.

Front

What is the scale factor in a dilation?

Back

The ratio of the size of the image to the size of the pre-image.

Front

What is an example of an enlargement in dilation?

Back

A scale factor of 2, which doubles the size of the figure.

Front

What is an example of a reduction in dilation?

Back

A scale factor of 0.5, which halves the size of the figure.