The angles of a quadrilateral are in the ratio 3:4:5:6. Write a program to find and display all of its angles. [Hint: The sum of angles of a quadrilateral = 360°]

public class KboatQuadRatio
{
    public static void main(String args[]) {
        int r1 = 3, r2 = 4, r3 = 5, r4 = 6;
        double x = 360 / (double)(r1 + r2 + r3 + r4);
        double a = r1 * x;
        double b = r2 * x;
        double c = r3 * x;
        double d = r4 * x;
        System.out.println("Angle A = " + a);
        System.out.println("Angle B = " + b);
        System.out.println("Angle C = " + c);
        System.out.println("Angle D = " + d);
    }
}