Activity 5 Lesson 3

/*
 * Lesson 5 Coding Activity Question 3
 *
 * Input the radius of a circle and print the circumference and area.
 * The answer should be a decimal value.
 *
 * Remember the formula for circumference is 2 * pi * r and the formula
 * for area is pi * r * r. You can use 3.14 for the value of pi in this activity.
 *
 * Sample Run:

Enter a radius:
4
Circumference: 25.12
Area: 50.24

*/

import java.util.Scanner;
import java.lang.Math;

class Lesson_5_Activity_Three {
    public static void main(String[] args) {
      Scanner scan = new Scanner (System.in);
      System.out.println("Enter a radius: ");
      int x = scan.nextInt();
      System.out.println("Circumference: " + (6.28 * x));
      System.out.println("Area: " + (3.14*(Math.pow(x,2))));

       }
}