#include <iostream> #include "GeometricObject.h" #include "DerivedCircle.h" #include "DerivedRectangle.h" using namespace std; void displayGeometricObject(const GeometricObject& g) { cout << g.toString() << endl; } int main() { GeometricObject geometricObject; displayGeometricObject(geometricObject); Circle circle(5); displayGeometricObject(circle); Rectangle rectangle(4, 6); displayGeometricObject(rectangle); return 0; }