Scale Factor

Front

What is a scale factor?

Back

A scale factor is a number that describes how much a figure is enlarged or reduced in a scale drawing compared to the original figure.

Front

If a scale drawing is 8 units wide and the original is 4 units wide, what is the scale factor?

Back

2:1

Front

What happens to a figure if the scale factor is less than one?

Back

The figure will be a reduction.

Front

What is the scale factor from ΔDEF to ΔABC if the sides of ΔDEF are half the length of the sides of ΔABC?

Back

1/2

Front

In a scale drawing, if 1 inch represents 7 yards, how long is a soccer field that is 14 inches long in the drawing?

Back

98 yards.

Front

What is the scale factor from ABCD to MNOP if the sides of MNOP are 2/3 the length of the sides of ABCD?

Back

2/3

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

If a scale factor is 3:1, what does this mean?

Back

The new figure is 3 times larger than the original figure.

Front

What is the scale factor if a drawing measures 10 cm and the actual object measures 50 cm?

Back

1:5

Front

If a scale drawing has a scale of 1 inch = 4 feet, how many feet does 3 inches represent?

Back

12 feet.