Circle.java X PlaneCircle.java C > Users > 18318 > Documents > 210 > Quiz1 > Circle.java > $ Circle public class Circle 1 2 public static final double PI = 3.14159; public double r; 1 3 4 5 6 public Circle(double r) { this.r = R; } 9 10 public Circle() { 1.0; } r = 11 12 13 14 public double circumference() { return 2 * PI * r; } 15 16 17 18 19 public double area() { return PI * r *r; } 20 ] ) 00 OluwN 7 C: > Users > 18318 > Documents > 210 > Quiz1 > PlaneCircle.java 1 public class planecircle extends Circle { public double cx, cy: 3 4 public PlaneCircle(double r, double x, double y) { super(r); this.cx = x; this.cy = y; } 9 10 public boolean IsInside (double x, double y) { 11 double dx = x - cx, dy = y - cy; double distance Math.sqrt(dx*dx + dy*dy); return (distance