View Code of Problem 24

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



}

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