#ifndef TRIANGLE_H_
#define TRIANGLE_H_

class Triangle {
 public:
  Triangle(const Point &p1,const Point &p2, const Point &p3);

 private:
  Point p1_, Point p2_, Point p3_; // data members
  const Point kOrigin;  // constant, but this is bad design; you don't
                        // want to have one instance of kOrigin for
                        // each instance of Triangle
};  // class Triangle

#endif  // TRIANGLE_H_