import javax.swing.*;
import java.util.Scanner;

public class Triangle {

    public static void main (String[] args) {

        String inputString = JOptionPane.showInputDialog(null,
                "Please enter two lengths and an angle, separated with spaces");

        Scanner input = new Scanner(inputString);

        double a = input.nextDouble();
        double b = input.nextDouble();
        double beta = input.nextDouble();

        double cosBeta = Math.cos(Math.toRadians(beta));

        double c = Math.sqrt(a*a + b*b - 2 * a * b * cosBeta);

        String message = String.format("The third side is: %.2f", c);

        JOptionPane.showMessageDialog(null, message);

        final double EPSILON = 0.01;

        if (Math.abs(a - b) < EPSILON
                && Math.abs(a - c) < EPSILON
                && Math.abs(b - c) < EPSILON) {
            JOptionPane.showMessageDialog(null, "It is equilateral");
        } else if (Math.abs(a - b) < EPSILON
                || Math.abs(a - c) < EPSILON
                || Math.abs(b - c) < EPSILON) {
            JOptionPane.showMessageDialog(null, "It is isosceles");

        }

    }

}