Geometry Ratios and Proportions

The shapes are similar. Use proportions to solve for y.

• y = 11 ft

• y = 4.5 ft

• y = 5 ft

• y = 6.5 ft

The shapes are similar. Use proportions to find the value of y.

• y = 30 m

• y = 25 m

• y = 10 m

• y = 32 m

The shapes are similar. What is the scale factor? Simplify your answer.

• 4:1

• 1:5

• 5:1

• 5:4

The triangles are similar. Use proportions to find the value of x.

• x = 5

• x = 1

• x = 3

• x = 4

The triangles are similar. Use proportions to find the value of x.

• x = 9

• x = 2

• x = 6

• x = 3

To find the height of a very tall pine tree, you measure your shadow and the tree's shadow.  How tall is the tree?

• 144 feet

• 72 feet

• 36 feet

Using a proportion, find the height of the tree.

• x = 0.0625 ft.

• 12 ft

• x = 16 ft.

• 48 ft

Complete each proportion.
CB / DM  =  AC / ?

• BM

• MA

• BC

• AD

The 2 shapes are similar. Solve for X.

• 2 ft

• 3 ft

• 4 ft

• 6 ft

Solve for X.

• 2 ft

• 3 ft

• 4 ft

• 6 ft