Question

Volume of hollow sphere given by

4/3 *pi*(Ro^3 –Ri^3 )

where Ro is the outer radius, and

Ri is the inner radius

Write a program that prompt user for these two radii, then call a function to calculate volume, and print result. If you enter inner radius larger than outer radius, or negative numbers as radius then warn the user that the radii entered are invalid, and prompt user to reenter radii. Your function calculates the volume of the hollow sphere.

Answer 1

Here is your code..

#include<iostream>
using namespace std;
float volume(float Ro, float Ri)
{  
   float vol,pi = 3.14159;
   float a= ((Ro*Ro*Ro)-(Ri*Ri*Ri));
   vol = (float(4)/float(3)) * pi * a;
   return vol;
}

int main()
{
   float radius1, radius2;
s:   cout<<"Enter radius1(Inner radius) : ";
   cin>>radius1;
   cout<<"Enter radius2(Outer radius) : ";
   cin>>radius2;  
   if((radius1>radius2) || (radius1<0) || (radius2<0))
   {
       cout<<"Entered radius is invaid.Please enter it again"<<endl;
       goto s;
   }
   else
   {
       float v=volume(radius2,radius1);
       cout<<"Volume Of Hollow Sphere is :" << v << endl;
   }
return 0;
}