Design and test a C program to compute volume and surface area of a sphere

Design and test a C program to compute volume and surface area of a sphere.

Code

#include <stdio.h>  
int main()  
{  
   int radius=37;  
   double pie=3.14285714286;  
   double area_sphere=4*pie*(radius*radius);  
   double volume=(4.0/3.0)*pie*(radius*radius*radius);  
   printf("Surface area of the sphere=%f\n",area_sphere);  
   printf("Volume of the sphere=%f\n",volume);  
}  

Output

Try to get radius from user using scanf() function