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Check whether the triangle is valid or not if angles are given
  • Difficulty Level : Basic
  • Last Updated : 27 Apr, 2021

Given three integers A, B and C which are the three angles of a possible triangle in degrees, the task is to check whether the triangle is valid or not.
Examples: 
 

Input: A = 60, B = 40, C = 80 
Output: Valid
Input: A = 55, B = 45, C = 60 
Output: Invalid 
 

 

Approach: A triangle is valid if the sum of the three angles is equal to 180 degrees. 
 



Below is the implementation of the above approach: 
 

C++




// C++ implementation of the approach
#include <bits/stdc++.h>
using namespace std;
 
// Function to check if sum of the
// three angles is 180 or not
bool Valid(int a, int b, int c)
{
    // Check condition
    if (a + b + c == 180 && a != 0 && b != 0 && c != 0)
        return true;
    else
        return false;
}
 
// Driver code
int main()
{
    int a = 60, b = 40, c = 80;
 
    if (Valid(a, b, c))
        cout << "Valid";
    else
        cout << "Invalid";
}

Java




// Java program to check
// validity of any triangle
class GFG {
 
    // Function to check if sum of the
    // three angles is 180 or not
    public static int Valid(int a, int b, int c)
    {
        // check condition
        if (a + b + c == 180 && a != 0 && b != 0 && c != 0)
            return 1;
        else
            return 0;
    }
 
    // Driver Code
    public static void main(String args[])
    {
 
        int a = 60, b = 40, c = 80;
 
        // function calling and print output
        if ((Valid(a, b, c)) == 1)
            System.out.print("Valid");
        else
            System.out.print("Invalid");
    }
}
 
// This code is contributed
// by Apurva Sharma

Python3




# Python3 implementation of the approach
 
# Function to check if sum of the
# three angles is 180 or not
def Valid(a, b, c):
 
    # Check condition
    if ((a + b + c == 180) and a != 0 and b != 0 and c != 0):
        return True
    else:
        return False
 
# Driver code
if __name__ == "__main__":
    a = 60
    b = 40
    c = 80
    if (Valid(a, b, c)):
        print("Valid")
    else:
        print("Invalid")
 
# This code is contributed by
# sanjeev2552

C#




// C# program to check
// validity of any triangle
using System;
 
class GFG {
 
    // Function to check if sum of the
    // three angles is 180 or not
    public static int Valid(int a, int b, int c)
    {
        // check condition
        if (a + b + c == 180 && a != 0 && b != 0 && c != 0)
            return 1;
        else
            return 0;
    }
 
    // Driver Code
    public static void Main()
    {
        int a = 60, b = 40, c = 80;
 
        // function calling and print output
        if ((Valid(a, b, c)) == 1)
            Console.WriteLine("Valid");
        else
            Console.WriteLine("Invalid");
    }
}
 
// This code is contributed
// by anuj_6

Javascript




// javascript program to check
// validity of any triangle
 
    // Function to check if sum of the
    // three angles is 180 or not
   function Valid(a,  b,  c)
    {
     
        // check condition
        if (a + b + c == 180 && a != 0 && b != 0 && c != 0)
            return 1;
        else
            return 0;
    }
   
    // Driver Code
        var a = 60, b = 40, c = 80;
   
        // function calling and print output
        if ((Valid(a, b, c)) == 1){
            document.write("Valid");
            }
        else{
            document.write("Invalid");
          }
     
// This code is contributed by bunnyram19.
  

Output:

Valid

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