Scale Factors

Find missing side

• 5

• 7

• 9

• 11

The pair of figures is similar. Find the missing side.

• x = 12

• x = 3

• x = 40

• x = 4

What is the scale factor from the small fry to the large fry?

• 1/3

• 48

• 4

• 3

Which figure is scale copy of the original figure?

• A

• B

• C

• D

Solve the proportion.

• k=5

• k=3.3333333

• k=60

• k=90

Fairview and Rockville are 104 miles from each other. How far apart would the cities be on a map that has a scale of 1 cm : 13 miles? Solve the proportion.

• 7 cm

• 1352 cm

• 8 cm

• 4 cm

What is the scale factor from ABCD to MNOP?

• 2/3

• 3/2

• 2

• 3

If the scale factor is 4, what is the measurement of x?

• 20 m

• 24 m

• 16 m

• 4 m

What is the scale factor of the dilation of ABC to XYZ?

• 2

• 3

A ~ B. What is the scale factor of the dilation of A to B?

• 3

• 4