#include "shape.cpp" #include "square.cpp" #include using namespace std; int main() { Square box1; box1.setLength(5); cout << "The length of box1 is: " << box1.getLength() << endl; cout << "The width of box1 is: " << box1.getWidth() << endl; cout << "The perimeter of box1 is: " << box1.perimeter() << endl; cout << "The area of box1 is: " << box1.area() << endl << endl; return 0; }