public class Triangle {
	public Point a = new Point();
	public Point b = new Point();
	public Point c = new Point();

	public String toString(){
		String triangleCoord = "(" + a.getX() + ", " + a.getY() + "), (" + b.getX() + ", " + b.getY() + "), (" + c.getX() + ", " + c.getY() + ")";
		return triangleCoord;
	}

	public double perimeter(){
		double perimeter = a.distance(a, b) + a.distance(a, c) + b.distance(b, c);
		return perimeter;
	}

	public double area(){
		double s = (a.distance(a, b) + a.distance(a, c) + b.distance(b, c)) / 2;
		double area = Math.sqrt(s * (s - a.distance(a, b) * (s - a.distance(a, c)) * (s - b.distance(b, c))));
		return area;
	}
}