package a202;

public class Triangle {
	
	Line a, b, c;
	
	public Triangle(Point pointA, Point pointB, Point pointC){
		a = new Line(pointA, pointB);
		b = new Line(pointB, pointC);
		c = new Line(pointC, pointA);
	}
	
	//SQRT(s(s-a)(s-b)(s-c)), 
	public double area(){
		double s = (a.getLength() + b.getLength() + c.getLength())/2;
		double area = Math.sqrt(s*(s - a.getLength())*(s - b.getLength())*(s-c.getLength()));
		
		
		return area;
	}
	
	public static void main(String[] args){
		Point p1 = new Point(0, 0);
		Point p2 = new Point(6, 0);
		Point p3 = new Point(3, 3);
		Triangle suzy = new Triangle(p1, p2, p3);		

	    Triangle a = new Triangle(new Point(0, 0), 
                new Point(0, 3), 
                new Point(4, 0));
	    
		System.out.println("Suzy's area is: " + suzy.area());
		System.out.println("A's area is: " + a.area());
	}
	
}