#include <stdio.h>  
int main () 
{ 
	// Perimeter of a sector using radius, R is raduse, A is the angle of sector
	#define PERIMETER_SECTOR_R(r,d) (( 2 * (r) + 2 * 3.14159 * (r) * ((d)/360.0))) 

	float sector =  PERIMETER_SECTOR_R(8,115);
    printf ("macro:%f",sector); 
 
    return (0); // success
 
} // main