Scale Factors

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, some quantity. It is used to determine how much larger or smaller a figure is compared to another.

Front

If the scale factor is 0.25, what type of transformation occurs?

Back

Reduction

Front

What does a scale factor greater than 1 indicate?

Back

An enlargement of the figure.

Front

What does a scale factor less than 1 indicate?

Back

A reduction of the figure.

Front

If the scale factor is 3, how does the new figure compare to the original?

Back

The new figure is 3 times larger than the original.

Front

What is the scale factor if a figure is enlarged from a size of 2 to a size of 8?

Back

The scale factor is 4.

Front

What is the scale factor if a figure is reduced from a size of 10 to a size of 2.5?

Back

The scale factor is 0.25.

Front

How do you calculate the scale factor between two similar figures?

Back

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

Front

What is the scale factor if a small fry is enlarged to a large fry with a size ratio of 1:3?

Back

The scale factor is 3.

Front

If a shape is enlarged by a scale factor of 2, what happens to its area?

Back

The area increases by a factor of 2^2 = 4.