C Program to Calculating Area of Circle using Pointer

C Program to Calculating Area of Circle using Pointer

#include

void areaperi ( int r, float *a, float *p )
{
*a = 3.14 * r * r ;
*p = 2 * 3.14 * r ;
}

void main( )
{
int radius ;
float area, perimeter ;

printf ( "\n Enter radius of a circle " ) ;
scanf ( "%d", &radius ) ;

areaperi ( radius, &area, &perimeter ) ;

printf ( "The Area is = %f", area ) ;
printf ( "\n The Perimeter = %f", perimeter ) ;
}