//program to find area of triangle by herons formula
#include<stdio.h>
#include<math.h>
float area(int,int,int);
int main()
{
int a,b,c;
float ar;
printf(“enter the numbers\n”);
scanf("%d%d%d",&a,&b,&c);
area(a,b,c);
printf(“the area is %f”,ar);
return 0;
}
float area(int a,int b,int c)
{
float s,ar;
s=(a+b+c)/2;
ar=pow((s*(s-a)(s-b)(s-c)),0.5);
return(ar);
}
in printf function use "
and in ar , ar = pow((s*(s-a)(s-b)(s-c)),0.5);
and in 12th raw printf fuction use area(a,b,c) instead of ar