View Code of Problem 24

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