a cylindrical storage tank is 14' high and has an inside diameter of 6' what is the volume of the tank to the nearest cubic foot?

Question

one cubic foot contains 7.48 gallons how many gallons does the tank hold 

Answer 1

The equation to find the volume of a cylinder is pi x r² x height.  pi=3.14, r=1/2 diameter (3 ft in this case)

 

so we plug the number the numbers into the this equation and we get

 

3.14 x 3² x 14 ft =

 

3.14 x 9 x 14 ft = 395.84 cubic ft (396 cubic feet)

 

now that we have cubic feet we can calculate the number of gallons it can hold.

 

395.84 cubic ft x 7.48 gals/cubic ft

 

the units of cubic feet cancel each other out and we get 2960.88 gallons of whatever liquid the tank can hold