A rectangular swimming pool has a volume of 7200 ft3. It has a depth of 9 feet and a width of 20 feet. What is the length of the pool?

A rectangular swimming pool has a volume of 7200 ft3. It has a depth of 9 feet and a width of 20 feet. What is the length of the pool?

400 ft

7020 ft

4 ft

40 ft

1 answer

The length of the pool is 36 feet.

To find the length, we use the formula for volume of a rectangular prism: length x width x depth = volume.

Substituting the given values, we get:

length x 20 feet x 9 feet = 7200 ft3

Simplifying:

length x 180 = 7200

length = 7200/180

length = 40

Therefore, the length of the pool is 40 feet.