View Code of Problem 24

#include<stdio.h>
#include<math.h>
int main()
{
	float a,b,c,l;
	double s;
	while(scanf("%f %f %f",&a,&b,&c)!=EOF)
	{
	     l=(a+b+c)/2;
	     s=sqrt(l*(l-a)*(l-b)*(l-c));
	     printf("%.2lf\n",s);
	}
	
} 

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