void Trapezoid::print(ostream &out, Trapezoid &t)
{
	Quadrilateral::print(out, t);
	if(t.validate())
	{
		t.setDefault();
		out << "I am not a trapezoid, I have set myself to one\n";
		out << t.a << ' ' << t.b << ' ' << t.c << ' ' << t.d << endl;
	}
	else
	{
		out << "I am a trapezoid.\n";
	}
	return;
}