Geometry Ratios and Proportions

Find side length X.

• 16

• 18

• 2.4

• 15

Solve for X.

• 2 ft

• 3 ft

• 4 ft

• 6 ft

Find side length X.

• 30

• 25

• 15

• 40

Find missing side

• 5

• 7

• 9

• 11

If two figures are similar, the corresponding sides are ______________.

• equal

• congruent

• proportional

• none of these

Are the following similar? Why or why not?

• Yes

• No, the corresponding angles are not equal.

• No, the ratios of the corresponding sides are not equal.

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

Solve for the variable x.

• x = 8.5

• x = 10

• x = 1

• x = 2

Sides in similar figures must be proportional.  

• True

• False 

A triangle has sizes measuring 11 cm, 16 cm, and 16 cm. A similar triangle has sides measuring x cm, 24 cm, and 24 cm. What is x?

• x = 19 cm

• x = 24 cm

• x = 3 cm

• x = 16.5 cm