#ifndef PARALLELOGRAM_H_INCLUDED
#define PARALLELOGRAM_H_INCLUDED
#include "quadrilateral.h"
class Parallelogram:public Quadrilateral
{
public:
Parallelogram();
Parallelogram(Point &p1, Point &p2, Point &p3, Point &p4);
void SetAll(Point &p1, Point &p2, Point &p3, Point &p4);
double Perimeter();
double Area();
void Print();
};
#endif
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