Program to calculate the perimeter of the circle.

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					import java.util.Scanner;
public class perimeterOfCircle
    public static void main(String args[])  
        Scanner sc=new Scanner(;
        System.out.println("Enter radius of circle");
        double r=sc.nextDouble();
        double pi=22/7;
        /*Formula of perimeter of circle =2*pi*radius of circle */
        double perimeter=2*pi*r;  
        System.out.println("perimeter of circle="+perimeter);  


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