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 the size of a figure in relation to another figure.

Front

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

Back

The new figure will be an enlargement.

Front

What does a scale of 1 inch = 2 feet mean?

Back

It means that every 1 inch on the drawing represents 2 feet in real life.

Front

How do you find the scale of a drawing?

Back

To find the scale, divide the actual size by the size in the drawing.

Front

What is the scale factor from a smaller figure to a larger figure?

Back

The scale factor is greater than 1.

Front

What is the scale factor from a larger figure to a smaller figure?

Back

The scale factor is less than 1.

Front

If a drawing of a soccer field is 14 inches long and the actual field is 98 yards long, what is the scale?

Back

1 inch = 7 yards.

Front

If a backyard is 78 feet long in real life and the scale is 1 inch = 2 feet, how long is it in the drawing?

Back

39 inches.

Front

What is the scale factor from ABCD to MNOP if the scale factor is 2/3?

Back

The new figure (MNOP) is 2/3 the size of the original figure (ABCD).

Front

If Jamie's building is 300 ft tall and the scale is 1 inch : 10 ft, how tall is the building in the drawing?

Back

30 inches.