w3resource

C++ Exercises: Enter two angles of a triangle and find the third angle

C++ Basic: Exercise-52 with Solution

Third Angle of Triangle

Write a C++ program to enter two angles of a triangle and find the third angle.

Visual Presentation:

C++ Exercises: Enter two angles of a triangle and find the third angle

Sample Solution:

C++ Code :

#include<iostream> // Including input-output stream header file

using namespace std; // Using the standard namespace

int main() // Start of the main function
{
    float ang1, ang2, ang3; // Declaring variables to store angles of a triangle

    cout << "\n\n Find the third angle of a triangle :\n"; // Displaying the purpose of the program
    cout << "-----------------------------------------\n";

    cout << " Input the 1st angle of the triangle : "; // Prompting the user to input the 1st angle of the triangle
    cin >> ang1; // Taking input of the 1st angle from the user

    cout << " Input the 2nd angle of the triangle : "; // Prompting the user to input the 2nd angle of the triangle
    cin >> ang2; // Taking input of the 2nd angle from the user

    ang3 = 180 - (ang1 + ang2); // Calculating the 3rd angle of the triangle using the sum of angles
    cout << " The 3rd angle of the triangle is : " << ang3 << endl; // Displaying the calculated 3rd angle

    cout << endl; // Displaying an empty line for better readability

    return 0; // Returning 0 to indicate successful program execution
}

Sample Output:

Find the third angle of a triangle :                                  
-----------------------------------------                              
 Input the 1st angle of the triangle : 35                              
 Input the 2nd angle of the triangle : 35                              
 The 3rd of the triangle is : 110

Flowchart:

Flowchart: Enter two angles of a triangle and find the third angle

C++ Code Editor:

Previous: Write a program in C++ that converts kilometers per hour to miles per hour.
Next: Write a program in C++ to calculate area of an equilateral triangle.

What is the difficulty level of this exercise?



Become a Patron!

Follow us on Facebook and Twitter for latest update.

It will be nice if you may share this link in any developer community or anywhere else, from where other developers may find this content. Thanks.

https://www.w3resource.com/cpp-exercises/basic/cpp-basic-exercise-52.php