Consider the Revised Pizza Buying Program of Display 4

Essay

Consider the revised pizza buying program of Display 4.7.This program provides the following overloading for unitPrice functions for round and rectangular pizza:
double unitPrice(int diameter,double price);
double unitPrice(int length,int width,double price);
Suppose we are faced with the need for the unit price on a square pizza.The problem here is to devise in a 'natural' way to overload unitPrice to compute the price per square inch of a square as well as a round pizza?