Scale Factor Practice

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, some quantity. It is used to determine the ratio of the dimensions of a scale drawing to the actual object.

Tags

CCSS.7.G.A.1

Front

How do you find the scale of a drawing?

Back

To find the scale of a drawing, divide the actual length of the object by the length of the drawing. The result will give you the scale in the form of '1 inch = _ units'.

Tags

CCSS.7.G.A.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.

Tags

CCSS.7.G.A.1

Front

What is the scale used if 5 inches on a map represents 210 miles?

Back

1 inch = 42 miles.

Tags

CCSS.7.RP.A.2C

Front

How do you calculate the actual distance using a map scale?

Back

Multiply the distance on the map by the scale factor to find the actual distance.

Tags

CCSS.7.G.A.1

Front

If a map scale is 2 inches = 40 miles, what is the actual distance for 4.125 inches on the map?

Back

82.5 miles.

Tags

CCSS.6.RP.A.3B

Front

What does a scale factor of 2:1 mean?

Back

It means the drawing is twice as large as the actual object.

Tags

CCSS.7.G.A.1

Front

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

Back

2:1.

Tags

CCSS.7.G.A.1

Front

What is the scale factor if the original triangle is larger than the scaled triangle?

Back

The scale factor will be less than 1.

Tags

CCSS.7.G.A.1

Front

If a triangle on the left is the original and the scale factor is 1/2, what does that mean?

Back

It means the triangle on the right is half the size of the original triangle.

Tags

CCSS.8.G.A.3