Question

A lake has a diameter of 65 feet and depth of 20 feet for ever 1000ft cost $44.43 how much water is required to fill the lake

Answer 1

The lake's shape is a cylinder. The volume of a cylinder is given as: V=πhr^2 where r equals the radius, and h the depth. Therefre, the volume of the lake is:

V=πhr^2

V=π(20ft)(32,5ft)^2

V=66.364,1875‬ ft^3.

Given that 66.364,1875‬ ft^3 equals 496.44 gallons, we can say that 496.44 gallons of water is required to fill the lake.