A regular hexagon with sides of length 6 has an isosceles triangle attached to each side. Each of these triangles has two sides of length 8. The isosceles triangles are folded to make a pyramid with the hexagon as the base of the pyramid. What is the volume of the pyramid?<spanclass=′latex−bold′>(A)</span>18<spanclass=′latex−bold′>(B)</span>162<spanclass=′latex−bold′>(C)</span>3621<spanclass=′latex−bold′>(D)</span>18138<spanclass=′latex−bold′>(E)</span>5421