static void Main(string[] args)
{
Ponto p1 = new Ponto(3, 6);
Ponto p2 = new Ponto(7, 9);
Console.WriteLine(p1.ToString() + "\n" + p2.ToString());
Reta r = new Reta(p1, p2);
Console.WriteLine(r.ToString());
}
public Reta(Reta r)
{
P1 = r.P1;
P2 = r.P2;
}