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/******************************************************/
/*************** Isidro Pastor Jorda ******************/
/******************************************************/
/****************** Telematica ************************/
/******************************************************/

#include <iostream.h>
#include <stdlib.h>

const float PI=3.14;

int main()
{
      char eleccion;
      float n;

      cout << " Introduzca c si quiere el area del circulo " << endl;
      cout << " Introduzca r si quiere el area del circulo -> " ;
      cin.get(eleccion);

      if (eleccion == 'c')
      {
         cout << endl << " Introduzca el radio -> " ;
         cin >> n;
         cout << endl << " El area de la circunferencia es -> " << PI*n*n << endl;
      }
      else
          if (eleccion == 'r')
          {
             cout << endl << " Introduzca el lado -> " ;
             cin >> n;
             cout << endl << " El area del rectangulo es -> " << n*n << endl;
          }
          else
             cout << " -> ERROR <- " << endl;

      cout << endl << endl;
      system("PAUSE");
      return 0;
}