Dilations

Front

What is a dilation in geometry?

Back

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

Front

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

Back

The figure is enlarged.

Front

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

Back

The figure is reduced.

Front

What mathematical operation is used with the scale factor in a dilation?

Back

Multiplication.

Front

What is the scale factor in a dilation?

Back

A number that determines how much the figure is enlarged or reduced.

Front

Can a dilation produce both enlargements and reductions?

Back

Yes, a dilation can produce either an enlargement or a reduction.

Front

What is the term for a dilation that makes a figure smaller?

Back

Reduction.

Front

If the scale factor is 2, what type of dilation is it?

Back

Enlargement.

Front

If the scale factor is 0.5, what type of dilation is it?

Back

Reduction.

Front

What is the center of dilation?

Back

A fixed point in the plane about which all points are expanded or contracted.