1. Write a class rectangle (preferably .h and .cpp) that can be used in order to make the following code work correctly according to the comments.

#include

#include

#include \"rectangle.h\"

using namespace std;

int main()

{

rectangle r1, r2, r3;

r1.setValues(12, 4); // sets the values of width and height

r2.setValues(6, 13);

r3.setValues(10, 7);

cout

cout

cout

cout

}