Scale Factor & Using Scale Factor

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 figure.

Front

If the scale factor is greater than 1, what happens to the figure?

Back

The figure is enlarged.

Front

If the scale factor is less than 1, what happens to the figure?

Back

The figure is reduced.

Front

What is the scale factor from triangle ABC to triangle DEF if the sides of DEF are twice as long as those of ABC?

Back

The scale factor is 2.

Front

What is the scale factor from the small fry to the large fry if the large fry is three times the size of the small fry?

Back

The scale factor is 3.

Front

How do you find the missing side length using a scale factor?

Back

To find the missing side length, multiply the known side length by the scale factor.

Front

What is the scale factor from the Large rectangle to the Small rectangle if the Small rectangle is half the size of the Large rectangle?

Back

The scale factor is 1/2.

Front

If a triangle has a scale factor of 4:5, what does this mean?

Back

It means that for every 4 units in the original triangle, there are 5 units in the new triangle.

Front

What is the scale factor if the original figure has a side length of 10 and the new figure has a side length of 5?

Back

The scale factor is 1/2.

Front

If a scale factor is represented as 7/14, what is its simplest form?

Back

The simplest form is 1/2.