Java Program to find area of equilateral triangle

import java.util.Scanner;
class AreaOfEquilateralTriangle 
{
  public static void main(String args[]) 
   {   
      
         Scanner s = new Scanner(System.in);
         System.out.println("Enter the side of the Equilateral Triangle:");
         double a= s.nextDouble();
         double  area=(Math.sqrt(3)/4)*(a*a);
         System.out.println("Area of Equilateral Triangle is: " + area);      
    }
}
Output:
Enter the side of the Equilateral Triangle:
5
Area of Equilateral Triangle is:  10.825317