A cone has volume V, radius r, and a height of 12
centimeters.
Another cone has the same height and of the radius
of the original cone. Write an expression for its volume.

Apyramid fits exactly inside a cube. the cube and the pyramid share the same square base, and they are both exactly the same height. the volume of the cube is 66 cubic inches. what is the volume of the pyramid? explain your answer. answer asap