write a c programme to calculate area of triangle

/*write a c programme to calculate area of triangle*/
#include<stdio.h>
#include<conio.h>
void main()
{
	float b,l,area;
	clrscr();
	printf("enter the value of b:");
	scanf("%f",&b);
	printf("enter the value of l:");
	scanf("%f",&l);
	area=0.5*b*l;
	printf("area of triangle: %.2f",area);
	getch();

}