#include <iomanip.h>
#include <math.h>

int main()
{
    const double PI = 3.14159;
    double radius;
    double circumference;
    double area;
    double sqrtarea;
    double volume;

    cout << "Enter radius:  ";
    cin >> radius;  // ask the user for a number which is stored in radius

    circumference = 2 * PI * radius;
    area = PI * pow(radius,2);
    sqrtarea = sqrt(area);
    volume = 4./3. * PI * pow(radius,3);

    cout << "For radius *" << setw(10) << 
            setiosflags(ios::left | ios::showpoint) <<
                    setprecision(6) << radius << "*" << endl;
    cout << "The circumference is " << circumference << endl;
    cout << "The area is " << area << endl;
    cout << "The square root of the area is " << sqrtarea << endl;
    cout << "The volume is " << volume << endl;
}