Program to calculate area, perimeter and volume of a sphere from radius input by user.

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Problem:

Write a program to calculate area, perimeter and volume of a sphere from radius input by user.

Solution:

#include<iostream>
#include<conio.h>
using namespace std;
int main ()
{
float a,p,v,r;
const float PI=3.14;
cout<<"enter radius:";
cin>>r;
a=4*PI*r*r;
p=2*PI*r;
v=4/3*PI*r*r*r;
cout<<"the area of sphere is:"<<a<<endl<<"the perimeter of sphere is:"<<p<<endl<<"the volume of sphere is:"<<v;
getch();
}

Output:



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