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 a shape is enlarged or reduced.

Front

If the scale factor is 2, what does that mean?

Back

It means that the new shape is twice the size of the original shape.

Front

If the scale factor is 1/2, what does that indicate about the size of the new shape?

Back

The new shape is half the size of the original shape.

Front

What is the scale factor from shape A to shape B if shape B is twice as large as shape A?

Back

The scale factor is 2.

Front

What is the scale factor from ΔDEF to ΔABC if ΔABC is half the size of ΔDEF?

Back

The scale factor is 1/2.

Front

If a small fry is scaled up to a large fry with a scale factor of 3, how does the size compare?

Back

The large fry is three times the size of the small fry.

Front

What is the scale factor if a shape is enlarged by a factor of 4?

Back

The scale factor is 4.

Front

If the scale factor is 1/3, what does that mean for the size of the new shape?

Back

The new shape is one-third the size of the original shape.

Front

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

Back

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

Front

What happens to the area of a shape if the scale factor is 2?

Back

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