#include<stdio.h>

#include<conio.h>

int main()

{

int r; // r=redius

float circumference;

printf(“Enter any radius: \n”);

scanf(“%d”,&r);

circumference=2*3.14*r; //circumference of circle=2*3.14*r

printf(“Circumference of circle is = %0.2f”,circumference);

getch();

return 0;

}