Answer: 1356 cubic feet
Explanation:
The volume of cylinder is given by :_
, where r is the radius and l is the length of the cylinder.
Given : A cylindrical diesel fuel holding tank has a radius of r= 6 feet and a length of l=12 feet.
Therefore,

Hence, the volume of cylindrical diesel fuel holding tank =1356 cubic feet
Therefore, the maximum volume of fuel the tank can hold 1356 cubic feet.