Java 5.36课后题多边形的面积

//5.36import java.util.Scanner;//import java.text.Area;public class Area {public static void main(String[] args) {Scanner input = new Scanner(System.in);System.out.println("please input a n polygon and the length of the polygon");int n = input.nextInt();//多边形的边数double s = input.nextDouble();// 多边形的边长System.out.println("the area of your polygon is " + Area(n, s));}public static double Area(int n, double s){return ((n * s * s) / (4 * Math.tan(Math.PI / n)));}}