View Code of Problem 24

#include <stdio.h>

#include <math.h>
int main()

{
	float a,b,c;

	float s,area;

	scanf("%f%f%f",&a,&b,&c);

	s = (a+b+c)/2;

	area = sqrt(s*(s-a)*(s-b)*(s-c));


	printf("%.2f\n",area);



return 0;
}