Find the volume
rectangular solid-/=9 ft.; w=8 ft.; h=7 ft.
cylinder-r=3cm; h=5cm
square pyramid-/=10cm; w=10cm; h=9cm
cone-r=5 in.; h=3 in.
rectangular solid-/=4 1/2 ft.; w=3 ft.; h=2 1/2 ft.