Write a C++ program: Make a class for rectangle which calculates perimeter and area. then write two programs(.cpp files). one program has two objects that each of them is a Square and you ask user to give you the side. and in other program you have two rectangle objects and you ask user to give you length and width. then by using the class you defind in seperate file, claculate area and primiter. in each program you have the following: use the dynamic allocation. has a default constructor has a destructor. use an array of objects for 2 different rectangles make a UML you have to upload 3 files as submissions for this assignment. (or you can submit a link to an online compiler such as "replit" that includes all these 3 files) class (.h) (just one) main function (.cpp)  (two)  UML (one)

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Variables and Constant

Constants and variables are widely used in mathematical equations and expressions. They are also commonly found in the domain of programming, where each language has its own way to differentiate between a constant and a variable. Since they have all sorts of applications, knowing their differences is a good place to start.