#include <iostream>
#include "cerchio.h"

using std::cout;
using std::cin;
using std::endl;

int main()
{
  cout << " Insert the radius of the circle: ";
  double r;
  cin >> r;

  cout << " radius: " << r 
       << " circumference: " << circonferenza(r)
       << " Area: " << areaCerchio(r) << endl;

  return 0;
}