Find Missing Sides of Similar Figures

Two objects that are the same shape but not the same size are _______.

• Congruent

• Vertical

• Similar

• Complementary

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

• x = 20

• x = 12

• x = 5

• x = 4

Complete each proportion.
CB / DM  =  AC / ?

• BM

• MA

• BC

• AD

The two right triangles below are similar. What is x, the missing side length in triangle DEF? 

• 3.75

• 9.75

• 10

• 12

Review the picture.  Find the missing side measurement in the picture using a proportion.

• w = 18 m

• w = 6 m

• 6 m

• w = 0.16 m

Gwen scans a photo that is 4 in. wide by 6 in. tall into her computer. If she scales the height down to 3 in., how wide should the similar photo be?

• 3 in

• 2 in.

• 4 in

• 1 in

Find the missing perimeter.

• 15

• 20

• 25

• 30

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

• x = 1

• x = 3

• x = 9

• x = 5

Two objects that are the same shape but not the same size are _______.

• Congruent

• Vertical

• Similar

• Complementary 

Solve for X.

• 2 ft

• 3 ft

• 4 ft

• 6 ft