Computer Applications
You want to calculate the radius of a circle by using the formula:
Area = (22/7) * r2; where r = radius of a circle
Hence the radius can be calculated as:
r = √((7 * area) / 22)
Write a program in Java to calculate and display the radius of a circle by taking area as an input.
Java
Java Math Lib Methods
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Answer
import java.util.Scanner;
public class KboatCircleRadius
{
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
System.out.print("Enter Area of Circle: ");
double area = in.nextDouble();
double r = Math.sqrt(7 * area / 22);
System.out.print("Radius of Circle = " + r);
}
}Variable Description Table
Program Explanation
Output
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