Dilations Review

Front

What is the scale factor in a dilation?

Back

The scale factor is a number that describes how much a figure is enlarged or reduced during a dilation.

Front

When a dilation has a scale factor greater than one, what type of transformation occurs?

Back

Enlargement.

Front

What happens to a figure when the scale factor is less than 1?

Back

The figure undergoes a reduction.

Front

What type of figure does a dilation produce?

Back

A similar figure.

Front

Similar figures have the same ______ but different ______.

Back

shape; sizes.

Front

If a triangle is dilated with a scale factor of 2, what happens to its area?

Back

The area is multiplied by 4 (2^2).

Front

What is the effect of a negative scale factor in a dilation?

Back

It reflects the figure across the center of dilation.

Front

How do you determine the scale factor of a dilation?

Back

Divide the length of a side of the image by the length of the corresponding side of the original figure.

Front

What is the relationship between the angles of similar figures?

Back

The corresponding angles are equal.

Front

Can a dilation change the shape of a figure?

Back

No, a dilation does not change the shape, only the size.