Question: Define a class Shape in c++ having an attribute Area and a pure virtual function Calculate_Area. Also include the following in this class .

Define a class Shape in c++ having an attribute Area and a pure virtual function Calculate_Area. Also include the following in this class

. ● A constructor that initializes Area to zero.

● A method Display_Area() that displays the value of member variable “Area”.

● A virtual method Print_Area() that displays the value of member variable “Area”. Now derive three classes from Shape; Circle having attribute radius, Square having attribute Length and Rectangle having attributes Length and Breadth. Include the following in each class.

● A constructor that takes values of member variables as argument.

● A method Display_Area() that overrides Display_Area() method of Shape class.

● A method Print_Area() that overrides Print_Area() method of Shape class.

● A method Calculate_Area() that calculates the area as follows: Area of Circle= PI* Radius^2 Area of Square=Length^2 Area of Rectangle=Length*Breadth Make a driver program to test above classes.

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