Galveston Island has a glass pyramid building with a rainforest ecosystem that tourists can visit while at the beach. The pyramid takes up 4,760 cubic feet of space. The rectangular base of the pyramid is 20 ft by 21 ft. How tall is the glass pyramid?
Pyramid volume = 1/3 l w h
4760 = 1/3 20 * 21 * h
h = (4760 *3 )/ (20*21) ft = ........... ft