Ratios Proportions and Similar Polygons

Solve for the unknown in the equivalent ratios.
3/4 = 9/?

• 8

• 10

• 4

• 12

The ratio 5:15 simplifies to...

• 1:3

• 3:1

• 1:5

• 3:5

What is the ratio of circles to squares?

• 3:1

• 2:1

• 1:2

• 5:3

Solve the proportion.

• 20

• 7

• 22

• 11

• A
• B
• C
• D

Solve the proportion.

• 10

• -2

• 4

• -7

What is the similarity statement for the triangle pair?

• ΔXYZ~ΔNEW

• ΔXZY~ΔNWE

• ΔZYX~ΔENW

• ΔYZX~ΔNWE

Solve for x. The two figures are similar.

• x = 6

• x = 9

• x = 7

• x = `0

Find x and y.

• 4, 24

• 9, 12

• 6, 8

The figures are similar. Find the scale factor of the smaller figure to the larger figure.

• 2:5

• 5:3

• 3:5

• 2:3