sqFtPizza(numBoxes)

Your friends can move 20 boxes an hour, but they require one 16 inch (diameter) pizza for this work.  Write a function in Python that takes the number of boxes you have and returns how much square feet of pizza you will have to buy.  Use the function header:

sqFtPizza(numBoxes)

and have it return the square feet of pizza as a float.  Assume that the pizzas are perfectly round and that your friends require a full pizza even if they only work a partial hour.  (In case you’ve forgotten your geometry, the area of a circle is pi*r^2.  Use 3.14159 for pi.)