To solve this problem, we will subtract the volume of the cylinder from the volume of the rectangular prism.
The volume of a cylinder is: pi*r^2*h Substitute 2 in for r and 6 in for h. If the diameter is 4, then the radius is 2. pi*2^2*6 pi*4*6 pi*24 =75.4 ft^2
The volume of the rectangular prism is: l*w*h. Substitute 6 in for l, w and h, since all edges are equal. 6*6*6 36*6 =216 ft^2
Subtract 75.4 from 216 216-75.4=140.6
There is 140.6 cubic feet of concrete left in the block.
