Finding Scale Factor

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, some quantity. In geometry, it is the ratio of the dimensions of a figure to the dimensions of a similar figure.

Tags

CCSS.7.G.A.1

Front

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

Back

To find the scale factor, divide the length of a side of the larger figure by the length of the corresponding side of the smaller figure.

Tags

CCSS.7.G.A.1

Front

If the scale factor is greater than 1, what does that indicate?

Back

It indicates an enlargement of the figure.

Tags

CCSS.8.G.A.3

Front

If the scale factor is less than 1, what does that indicate?

Back

It indicates a reduction of the figure.

Tags

CCSS.8.G.A.3

Front

What is the scale factor from a figure with a length of 4 to a figure with a length of 1?

Back

Tags

CCSS.7.G.A.1

Front

What is the scale factor from a figure with a length of 2 to a figure with a length of 3?

Back

Tags

CCSS.7.G.A.1

Front

If a figure is reduced by a scale factor of 0.5, what happens to its dimensions?

Back

Each dimension of the figure is multiplied by 0.5, resulting in a smaller figure.

Tags

CCSS.8.G.A.3

Front

What is the scale factor if a figure's dimensions are doubled?

Back

The scale factor is 2.

Tags

CCSS.7.G.A.1

Front

How do you determine if a transformation is an enlargement or reduction?

Back

If the scale factor is greater than 1, it is an enlargement; if it is less than 1, it is a reduction.

Tags

CCSS.8.G.A.3

Front

What is the scale factor from a figure with a length of 10 to a figure with a length of 5?

Back

Tags

CCSS.7.G.A.1