Apple has built a new headquarters in Cupertino, California. Apple released the following
information about the new building:
● The building resembles a circle, as shown in the image below. The building’s exterior walls
(both those facing out and facing in) are made completely of glass.
● The building has a consistent width of about 230 feet.
● A park full of trees will be in the interior of the “circle.”
● A lap around the outside of the building is 4,700 feet.
● The building has 4 floors, and is intended for 12,000 employees to work

Apple estimates that 2.8 million square feet of the building is used for office space. How
much space does the average employee have to work? In other words, what is the density of
the building? Specify the unit for your answer.