Proportions and Scale Factors

Similar figures have the same shape but different __________ .

Select the correct proportion to solve

for side length x.

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

• x = 12
• x = 3
• x = 40
• x = 4

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

• x = 20
• x = 12
• x = 5
• x = 4

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

• x = 1
• x = 3
• x = 9
• x = 5

Solve the proportion.

• k=5
• k=3.3333333
• k=60
• k=90

Solve for x 

• x = 6
• x = 25
• x = 28
• x = 17

Solve for x 

• x = 16
• x = 28
• x = 1/26
• x = 26

Solve the proportion.

• q=2
• q=9
• q=4.5
• q=6

Solve the proportion.

• 10.8
• 7.5