Scale Factors and Proportions

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

• x = 1

• x = 3

• x = 9

• x = 5

Solve for x 

• x = 6

• x = 25

• x = 28

• x = 17

Solve the proportion.

• 10.8

• 7.5

Solve for x

• x=6

• x =1/6

• x = 7

• x=9

Solve for x 

• x = 1/10

• x = 10

• x = 4

• x = 5

Solve for x 

• x = 15

• x = 11

• x = 1/11

• x = 20

Solve for x.

• 100

• 1

• 0.1

• 10

Solve for x.

• 448

• 88

• 56

• 0.8

If we go from figure 1 to figure 2, is this an enlargement or reduction?

• Reduction

• Enlargement

• Neither

If the second figure is larger than the original, the scale factor will be ______________.

• greater than 1

• less than 1

• equal to 1