Answer:
Hope it helps this is an isosceles triangle
Just subtract the volume of the cylinder from the volume of the rectangular prism.
Volume of rectangular prism = l x w x h = 4 x 2 x 3 = 24 ft^3
Volume of cylinder = pir^2h = pi*(6/12)^2*3 = 3/4 pi
Thus the volume would be
24 - 3/4 pi = 21.64 ft^3.
The volume would be 21.64 ft3