5. STAGES A stage has the form of a square pyramid
with the top sliced off along a plane parallel to the
base. The side length of the top square is 12 feet
and the side length of the bottom square is 16 feet.
The height of the stage is 3 feet.
12 feet
16 feet
3 feet
a. What is the volume of the entire square pyramid
that the stage is part of?