public class Circle extends Shape{

	final double pi = 3.14159265;
	private double radius;
	
	public Circle(int width) { 
		super(width, width);
		radius = ((double)width)/2.0;
	}
	
	public double area(){ 
		return pi*radius*radius;
	}
	
	public String toString(){ 
		return super.toString() + " area: " + area();
	}
}