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Program to find the Area of any Triangle having values of three sides

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To find the area of any triangle in which values of three sides are given we can use Heron's formula

which is equal to:

Note: To apply Heron's formula there should be values of all three sides of a triangle.

C++ Program to find the area of any triangle using Heron's Formula

#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));

    cout<<"Area of Triangle= "<<area<<endl;

    return 0;

}

Sample Output:



 Image view of  Code:

5 comments:

  1. Replies
    1. To get the decimal value.. by using int we cannot get the value if result contains decimal part.

      Delete
  2. This comment has been removed by the author.

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  3. How to find the area if three points (x1,y1) (x2,y2) and (x3,y3) is given?

    ReplyDelete
  4. Nice blog.. Thanks for sharing informative blog.. its very useful to me..
    c programming training


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