Archive:Area of triangle using C

<source lang="c">

1. include<stdio.h>
2. include<math.h>

/* main: calculate the area of a triangle using Heron's Formula */ int main(void) {

   float a, b, c, s, area;
   printf("Enter sides of triangle: ");
   scanf("%f%f%f", &a, &b, &c);
   s = (a + b + c) / 2;

   /* no error checking: sqrt() works only if its arg >= 0 */
   area = sqrt(s * (s-a) * (s-b) * (s-c));
   printf("Area = %f\n", area);

   /* indicate success */
   return 0;

} </source>