#ifndef _GEOMETRY_H
#define _GEOMETRY_H

struct Point
{
    double x, y;
};


class Figure
{
    protected:
    double l2(double x1, double y1, double x2, double y2);

    public:
    virtual double calc_area() = 0;
    virtual double calc_perimiter() = 0;
    virtual void name() = 0;
};

#endif