C++ program to check whether a triangle can be formed by the given value for the angles.


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Introduction

C++ program to check whether a triangle can be formed by the given value for the angles. I have used DEV-C++ compiler for debugging purpose. But you can use any C programming language compiler as per your availability.


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#include<iostream>
using namespace std;

int main()
{
    int anglea, angleb, anglec, sum;

    cout << "Input three angles of triangle : ";
    cin >> anglea >> angleb >> anglec;

    // Calculate the sum of all angles of triangle
    sum = anglea + angleb + anglec;
    // Check whether sum=180 then its a valid triangle otherwise invalid triangle
    if(sum == 180)
    {
        cout << "It is a valid triangle. "<<endl;
    }
    else
    {
        cout << "It is a invalid triangle.";
    }
    return 0;

}

Result

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