Scale Factor

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, a 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 size of the figure?

Back

The figure enlarges.

Front

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

Back

The figure reduces in size.

Front

What is the scale factor from a rectangle measuring 4 cm by 6 cm to a rectangle measuring 8 cm by 12 cm?

Back

The scale factor is 2.

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 triangle's sides are doubled?

Back

The scale factor is 2.

Front

If a scale factor is 1/2, what does this indicate about the new figure?

Back

The new figure is a reduction of the original figure.

Front

What is the scale factor from a square with a side length of 2 m to a square with a side length of 3 m?

Back

The scale factor is 3/2.

Front

If the original figure has a perimeter of 20 m and the scale factor is 1/4, what is the perimeter of the new figure?

Back

The perimeter of the new figure is 5 m.

Front

What does it mean if two figures are similar?

Back

It means they have the same shape but may differ in size, and their corresponding sides are in proportion.