#include

#define a 0.5

int main()

{ int X;

int NB;

int BN;

int NBA;

int NBNBNB;

printf("Please enter the base: X=");

printf("Please enter the height: NB=");

printf("Please enter the hypotenuse: BN=");

scanf("%d";&X);

scanf("%d";&NB);

scanf("%d&quo