Question

java program to find the area and perimeter of a square when a diagonal is given

Answer 1

import java.util.Scanner;

public class Demo 
{
public static void main(String args[])
 { 
int a, s, c; 

Scanner hello = new Scanner(System.in); 

System.out.print("Enter Square Length :");

c = hello.nextInt(); 

a = c * c; 

s = 4 * c;

 System.out.print("\n Area  of a square = " +a);

System.out.print("\n\n Perimeter of a square = " +s);

 }
}