View Code of Problem 24

#include<stdio.h>
#include<math.h>
void main()
{	
	
	float a,b,c,p,s;
	scanf("%f%f%f",&a,&b,&c);
	p=(a+b+c)/2;
	s=sqrt(p*(p-a)*(p-b)*(p-c));
	printf("%0.2f",s);
}