#include <stdio.h>
#define PI 3.14
int main ()
{
float r=0;
float cir=0;
float area=0;
printf("please into put a radius.");
scanf("%f",&r);
cir =2*PI*r;
area =PI*r*r;
printf("%0.2f\n",cir);
printf("%0.2f\n",area);
printf("please into put second radius.");
scanf("%f",&r);
cir =2*PI*r;
area =PI*r*r;
printf("%0.2f\n",cir);
printf("%0.2f\n",area);
printf("please into put third radius.");
scanf("%f",&r);
cir =2*PI*r;
area =PI*r*r;
printf("%0.2f\n",cir);
printf("%0.2f\n",area);