/*Finds the surface area and volume of sphere*/
#include<iostream.h>
#include<math.h>
#define SPH_VOL 1.33333333
#define SPH_AREA 12.56637061

float sphvolume(float radius);
float spharea(float radius);

int main()
{
float r;
cout<<"Radius : ";cin>>r;
cout<<"Volume = "<<sphvolume(r)<<endl;
cout<<"Surface area = "<<spharea(r)<<endl;
}

float sphvolume(float radius)
{
return SPH_VOL*M_PI*radius*radius*radius;
}

float spharea(float radius)
{
return SPH_AREA*radius*radius;
}