Programalama > C#

#include <stdio.h>
#include <conio.h>

void main(void)
{
      float yaricap = 0;
      double alan  = 0;
      double cevre = 0;

      clrscr();

      printf("\n Dairenin Alani ve Cevresi");
      printf("\n =========================");

      printf("\n Dairenin yaricapini giriniz: ");
      scanf("%f",&yaricap);
      fflush(stdin);

      alan = 3.14 * yaricap * yaricap;
      cevre = 2 * 3.14 * yaricap;

      printf("\n Dairenin Alani   : %.4f ",alan);
      printf("\n Dairenin Cevresi : %.4f",cevre);

      getch();
}