Ratios Proportions Geometric Mean

• ^c/_d

• ^d/_c

• cd

• x²

Simplify the Ratio.

81 cm to 3 cm

• 27 cm to 1 cm

• 25 cm to 3 cm

• 20 cm to 2 cm

• 81 cm to 3 cm

Simplify the Ratio

72 ft to 9 ft

• 9 : 72

• 8 : 1

• 36 : 2

• 9 : 1

Simplify the Ratio.

4 ft to 24 in

Hint: units of measure must match

Find the geometric mean between the two numbers.

2 and 18

• 3

• 8

• 6

• 5

Find the geometric mean between the two numbers.

4 and 25

• 23

• 15

• 10

• 1

Find the geometric mean between the two numbers.

Find the geometric mean between the two numbers.

The perimeter of a rectangle is 154 feet. The ratio of the length to the width is 10:1. Find the length and width.

• L = 50, W = 27

• L = 60, W = 17

• L = 70, W = 10

• L = 65, W = 12

What is the geometric mean between 64 and 25?

• 13

• 3

• 40

• 89