/*write c program to find the area of a triangle, given three sides.
area=sqr(s*(s-a)*(s-b)*(s-c))
where s=a+b+c/2*/
#include<stdio.h>
#include<math.h>
int main()
{
float a,b,c,s,area;
printf("\n Enter the three sides of triangle\n");
scanf("%f%f%f",&a,&b,&c);
s=(a+b+c)/2;
area=sqrt(s*(s-a)*(s-b)*(s-c));
printf("\n area of the triangle is %f", area);
return 0;
}