Help with calculate area of a circle and volume of sphere that are of the same radius

need help on this homework assignment.

help with calculating area of a circle and volume of sphere that are of the same radius. Solution must use functions. I can only work with the areas that are highlighted in bold.

#include <iostream>
#include <cmath>

using namespace std;

const double PI = 3.14159;

double area (double radius); // function prototype
double volume (double radius);
void display (double radius, double areaValue, double volumeValue);

int main ()
{
double radius;
double area_of_circle;
double volume_of_sphere;

cout<<"Enter the radius";
cin >> radius;
area_of_circle = Write the function call ;
volume_of_sphere = Write the function call;
cout<< "Circle One \n";
display ( write parameters to pass to display);

cout << "\n\n";
cout<<"Enter the radius";
cin >> radius;
area_of_circle = Write the function call;
volume_of_sphere = Write the function call;
cout<< "Circle two \n";
display (write parameters to pass to display);

system ("PAUSE");
return 0;
}

/* Computes area of circle */
/* */
/* Inputs: */
/* radius */
/* */
/* Output: */
/* area */


double area (double radius)
{
return (PI * pow (radius, 2));
}

/* Computes volume of sphere */
/* */
/* Inputs: */
/* radius */
/* */
/* Output: */
/* Volume */

double volume (double radius)
{
return ((4.0/3.0) * PI * pow (radius, 3));
}

/* Display computations */
/* */
/* Inputs: */
/* radius, area, volume */
/* */
/* Output: */
/* none */

void display (double radius, double areaValue, double volumeValue)
{
cout << "Radius = " << radius << " inches \n";
cout << print ("radius");
cout << print ("volume");
}

We all know you put absolutely no effort in this "assignment" when you are stuck on how to print a cout statement to prompt the user for the radius.

It's not that I don't put no effort is that I am not really that good in C++. I have understand some other areas in this program but don't know nothing for this one. I took a course a long time ago but I forgot to work with this. Now I need to understand this better cause basically all my upper levels classes will cover these areas & I need to know the basic concepts for these programs in C++

darken4life or anyone

If someone can explain this exercise to me step by step, I would gladly appreciated.

This is the sort of thing found in early tutorials on C++.
Sorry, there's little excuse for this one - go look up how to call a function.

where can I look it up? I don't want someone to do the exercise for me, what I want is to learn how to do this exercise correctly. I have very little knowledge in C++ . I have learned how to do the grade exercise & some calculations but no like this one. If someone can point me to the right direction on were to learn this I might be able to work on this assignment for a bit.

You can easily google anything up.
http://www.cplusplus.com/doc/tutorial/

Amen Brutha,

Why don't you read more and figure this out for yourself. You will feel a sense of pride.

2 cents

Goto google and type:

c++ tutorial || help with c++