Question

You want to calculate the radius of a circle by using the formula
$area = 22 \div 7r {}^{2}$



$r = \sqrt{7 \times area \div 22}$
Write a program in java to calculate and display the radius of a circle by taking area as input.​

Answer 1

$\qquad\quad\mathcal{\underline{\underline{ANSWER}}}$

import java.util.*;

public class Brainly

{

$\quad$ public static void main (String args[])

$\quad \;$ {

$\quad \;$ Scanner sc= new Scanner (System.in);

$\quad \;$ System.out.println("enter area of circle");

$\quad \;$ double area = sc.nextDouble( );

$\quad \;$ double radius = Math.sqrt(7 * area/22);

$\quad \;$ System.out.println("Radius of circle =" + radius);

$\quad$ }

}

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I've taken 154 as input while executing the program and received the correct output.