text: #include <stdio.h>
  #include <stdlib.h>
  
  /* PROGRAM TO CALCULATE SURFACE AREA OF SPHERE created by joshua*/
  
  int main()
   { 
  
  float radius;
  float surface_area;
  printf("Enter radius of the sphere:\n");
  scanf("%f",&radius);
  surface_area=4*(22/7)*radius*radius;
  printf("surface area of sphere is :%.3f",surface_area);
  return 0;
  }
  
  
  2
  we can also find  using this method  when given radius of sphere
  #include<stdio.h>
  
  
  int main()
  {
  int radius=37;
  double pie=3.14;
  double area_sphere=4*pie*(radius*radius);
  printf("surface area of the sphere=%f" ,area_sphere);
  
  	
  	
  	
  	return 0;
  	}
  