C++ Program to find area of any triangle using Herons Formula

PROGRAM:

#include<iostream>
#include<math.h>
using namespace std;
int main()
{
        float first,second,third;
        float s,area;
        cout<<"Enter size of each sides of triangle"<<endl;
        cout<<"Enter size for First Side = ";
        cin>>first;
        cout<<"Enter size for Second Side = ";
        cin>>second;
        cout<<"Enter size for Third Side = ";
        cin>>third;
        s = (first+second+third)/2;
        area = sqrt(s*(s-first)*(s-second)*(s-third)); // Herons Formula
        cout<<"Area of Triangle= "<<area<<endl;
        return 0;
}

OUTPUT:

Enter size of each sides of triangle
Enter size for First Side = 15
Enter size for Second Side = 10
Enter size for Third Side = 8
Area of Triangle= 36.9789