Scale Factor

Front

What is the scale factor?

Back

The scale factor is a number that describes how much a figure is enlarged or reduced in size. It is the ratio of the dimensions of the scaled figure to the original figure.

Front

If the scale factor is 1/2, what does it mean?

Back

It means that the dimensions of the new figure are half the size of the original figure.

Front

What is the scale factor if a drawing is enlarged from 4 inches to 8 inches?

Back

The scale factor is 2.

Front

How do you find the height of a scaled drawing if you know the scale factor and the original height?

Back

Multiply the original height by the scale factor.

Front

If a drawing is 20 inches tall and the scale factor is 1/2, what is the new height?

Back

The new height is 10 inches.

Front

What is the formula to calculate the scale factor?

Back

Scale Factor = (New Dimension) / (Original Dimension)