Dilations and Similar Figures Review

Front

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

Back

Multiplication

Front

Are two figures similar if the ratios of their corresponding sides are not equal?

Back

No, the ratios of the corresponding sides are not equal.

Front

A dilation always produces a similar figure. Similar figures have the same ______ but different ______.

Back

Shape; sizes

Front

What is the scale factor from figure ABCD to figure MNOP if the sides of MNOP are 2/3 the length of ABCD?

Back

2/3

Front

What scale factor was used to produce the image if the new figure is half the size of the original?

Back

1/2

Front

Define dilation in geometry.

Back

A transformation that produces a figure similar to the original by enlarging or reducing it using a scale factor.

Front

What is a scale factor?

Back

A number that scales, or multiplies, a quantity.

Front

If a figure is dilated by a scale factor of 3, what happens to its size?

Back

The figure is enlarged to three times its original size.

Front

If a figure is dilated by a scale factor of 1/2, what happens to its size?

Back

The figure is reduced to half its original size.

Front

What are corresponding angles in similar figures?

Back

Angles that are in the same position in different figures.