Mar 302021

Program to find the area of triangle

0 Suresh Chand March 30, 2021

In this example, We will learn to calculate the area of a triangle. This program will calculate the area of any type of triangle.

We will use following formula to calculate area of the triangle

Area of triangle

C plus program to find area of trangle
Formula: Area of a Triangle

For detail explanation of area of a triangle, You can check this website.

Lets look an example to make clear concepts


#include <iostream>
#include <cmath>

using namespace std;

int main()
    int a, b, c;
    cout << "Enter the three sides of the triangle\n";

    //taking input from user
    cin >> a >> b >> c;

    //calculating s
    float s = (float)(a + b + c) / 2;

    //calculating area
    float area = sqrt(s * (s - a) * (s - b) * (s - c));

    //printing the area
    cout << "Area of triangle = " << area << " sqt. unit" << endl; 

    return 0;

The output of above program is

Enter the three sides of the triangle
Area of triangle = 6 sqt. unit
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