Perimeter Similarity

Identify the perimeter and area ratios for the following figures.

• Per. Ratio=8  Area Ratio=64

• Per. Ratio=8/48  Area Ratio=64/2304

• Per. Ratio=8/48  Area Ratio=8/48

• Per. Ratio=8/48  Area Ratio=2304/64

An NBA basketball court (rectangle) is similar to an elementary school basketball court. The sideline of the NBA court  is 94 feet, and the sideline of the elementary court is 84.6 feet. The NBA court has a perimeter of 288 ft. Find the perimeter of the elementary court.

• 288 feet

• 5802 feet

• 259 feet

• 275 feet

Find the missing length indicated.

• 30

• 25

• 45

• 50

Find the missing side using proportions.

• 51

• 45

• 74

• 50

Triangle PQR is similar to triangle XYZ.  What is the PERIMETER of triangle XYZ?

• 21 cm

• 63 cm

• 105 cm

• 126 cm

Find the missing side using proportions.

• 4

• 5

• 3

• 6

Find the value of x using proportions.

• 10

• 5

• 4

• 7

Find AE

• 12.5

• 18

• 11.75

• 13

The triangles are similar, solve for the question mark.

• 8

• 12.5

• 18

• 24

To measure the distance across a pond, a surveyor locates points A, B, C, D, and E as shown.  What is AB to the nearest meter?

• 10

• 12

• 15

• 18