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Write a c++ function to find surface area of sphere?

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edited
#include <stdio.h>
#include <math.h>
 
int main()
{
 
 float radius;
 float surface_area, volume;
 
 printf("Enter radius of the sphere : \n");
 scanf("%f", &radius);
 surface_area = 4 * (22/7) * radius * radius;
 volume = (4.0/3) * (22/7) * radius * radius * radius;
 printf("Surface area of sphere is: %.3f", surface_area);
 printf("\n Volume of sphere is : %.3f", volume);
 return 0;
}

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