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

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:

10 comments:

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

      Delete
    2. To get the decimal value or we can say to find the floating point no because area can be flaot no also..

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

    ReplyDelete
  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


    ReplyDelete
  5. Replies
    1. Program to find out the area of triangle and if any side is 0 then display the message there is no triangle

      Delete
  6. To find out the area of triangle and if any side is 0 then display the message "there is no triangle

    ReplyDelete
  7. If any side zero to.print " there is no triangle using if statement

    ReplyDelete