Определить координаты центра и радиус описанной около треугольника окружности

package circleOverTriangle;
 
class Triangle {
    private Side a;
    private Side b;
    private Side c;
    private double semiPerimetr;
    private double area;
    private double radiusCircumCircle;
    private double xCenterRadius;
    private double yCenterRadius;
 
    Triangle(Side a, Side b, Side c) {
        this.a = a;
        this.b = b;
        this.c = c;
        this.semiPerimetr = calcSemiPerimitr();
        this.area = areaCalc();
        this.radiusCircumCircle = radiusCircumCircleCalc();
        this.xCenterRadius = xCircleCalc();
        this.yCenterRadius = yCircleCalc();
    }
 
    private double calcSemiPerimitr() {
        return 0.5*(a.getLength() + c.getLength() + b.getLength());
    }
 
    private double areaCalc() {
        return Math.sqrt(semiPerimetr*(semiPerimetr - a.getLength())*
                (semiPerimetr - b.getLength())*(semiPerimetr - c.getLength()));
    }
 
    private double radiusCircumCircleCalc() {
        return a.getLength()*b.getLength()*c.getLength()/(4*area);
    }
 
    private double xCircleCalc() {
        double firstBrecet = (b.getXSquarFirstPoint() - c.getXSquarFirstPoint() +
                b.getYSquarFirstPoint() - c.getYSquarFirstPoint())*a.getYFirstPoint();
        double secondBrecet = (c.getXSquarFirstPoint() - a.getXSquarFirstPoint() +
                c.getYSquarFirstPoint() - a.getYSquarFirstPoint())*b.getYFirstPoint();
        double thirdBrecet = (a.getXSquarFirstPoint() - b.getXSquarFirstPoint() +
                a.getYSquarFirstPoint() - b.getYSquarFirstPoint())*c.getYFirstPoint();
        double numerator = -0.5*(firstBrecet + secondBrecet + thirdBrecet);
        double denominator = a.getXFirstPoint()*(b.getYFirstPoint() - c.getYFirstPoint()) +
                             b.getXFirstPoint()*(c.getYFirstPoint() - a.getYFirstPoint()) +
                             c.getXFirstPoint()*(a.getYFirstPoint() - b.getYFirstPoint());
        return numerator/denominator;
    }
 
    private double yCircleCalc() {
        double firstBrecet = (b.getXSquarFirstPoint() - c.getXSquarFirstPoint() +
                b.getYSquarFirstPoint() - c.getYSquarFirstPoint())*a.getXFirstPoint();
        double secondBrecet = (c.getXSquarFirstPoint() - a.getXSquarFirstPoint() +
                c.getYSquarFirstPoint() - a.getYSquarFirstPoint())*b.getXFirstPoint();
        double thirdBrecet = (a.getXSquarFirstPoint() - b.getXSquarFirstPoint() +
                a.getYSquarFirstPoint() - b.getYSquarFirstPoint())*c.getXFirstPoint();
        double numerator = 0.5*(firstBrecet + secondBrecet + thirdBrecet);
        double denominator = a.getXFirstPoint()*(b.getYFirstPoint() - c.getYFirstPoint()) +
                b.getXFirstPoint()*(c.getYFirstPoint() - a.getYFirstPoint()) +
                c.getXFirstPoint()*(a.getYFirstPoint() - b.getYFirstPoint());
        return numerator/denominator;
    }
 
    public double getRadiusCircumCircle() {
        return radiusCircumCircle;
    }
 
    public double getxCenterRadius() {
        return xCenterRadius;
    }
 
    @Override
    public String toString() {
        return String.format("Треугольник с вершинами%n(%.3f, %.3f);%n(%.3f, %.3f);%n(%.3f, %.3f);",
                a.getXFirstPoint(), a.getYFirstPoint(),
                b.getXFirstPoint(), b.getYFirstPoint(),
                c.getXFirstPoint(), c.getYFirstPoint());
    }
 
    public static void main(String[] args) {
        Side alfa = new Side(new Point(2,2), new Point(2,4));
        Side beta = new Side(new Point(2,4), new Point(5,5));
        Side gamma = new Side(new Point(5,5), new Point(2,2));
        Triangle tr1 = new Triangle(alfa, beta, gamma);
        System.out.println(tr1);
        System.out.printf("Радиус описанной окружности = %.3f%nЦентр окружности (%.3f, %.3f)",
                        tr1.getRadiusCircumCircle(), tr1.getxCenterRadius(), tr1.getyCenterRadius());
 
    }
 
    public double getyCenterRadius() {
        return yCenterRadius;
    }
}
//####
package circleOverTriangle;
 
 class Point {
    private double x;
    private double y;
 
    Point(double x, double y) {
        this.x = x;
        this.y = y;
    }
 
    public double getX() {
        return x;
    }
 
    public double getY() {
        return y;
    }
 
    public double getSquareX() {
        return x*x;
    }
 
    public double getSquareY() {
        return y*y;
    }
}
//####
package circleOverTriangle;
 
class Side {
    private Point firstPoint;
    private Point secondPoint;
    private double length;
 
 
    Side(Point firstPoint, Point secondPoint) {
        this.firstPoint = firstPoint;
        this.secondPoint = secondPoint;
        this.length = getLength();
    }
 
    double getLength() {
        double xDelta = secondPoint.getX() - firstPoint.getX();
        double yDelta = secondPoint.getY() - firstPoint.getY();
        return Math.sqrt(xDelta*xDelta + yDelta*yDelta);
    }
 
    public double getXFirstPoint() {
        return firstPoint.getX();
    }
 
    public double getYFirstPoint() {
        return firstPoint.getY();
    }
 
    public double getXSquarFirstPoint() {
        return firstPoint.getSquareX();
    }
 
    public double getYSquarFirstPoint() {
        return firstPoint.getSquareY();
    }
}