Question

write a programme in Java to print the area of equilateral triangle​

Answer 1

Explanation:

/**

* Java program to find area of an equilateral triangle

*/

import java.util.Scanner;

class Test

{

public static void main(String args[])

{

double side, area;

Scanner op=new Scanner(System.in);

/* Input side of equilateral triangle */

System.out.print("Enter side of an equilateral triangle: ");

side=op.nextDouble();

/* Calculate area of equilateral triangle */

area = (Math.sqrt(3) / 4) * (side * side);

/* Print resultant area */

System.out.println("Area of equilateral triangle = "+area+" sq. units");

}

}