Write a C# Sharp program to check whether a triangle can be formed by the given value for the angles

using System;  
public class Exercise15  
{  
    public static void Main() 
{  
    int anga, angb, angc, sum; //are three angles of a triangle  
    Console.Write("\n\n");
    Console.Write("Check whether a triangle can be formed by given value:\n");
    Console.Write("--------------------------------------------------------");
    Console.Write("\n\n");

    Console.Write("Input angle1 of triangle: ");
    anga= Convert.ToInt32(Console.ReadLine());

    Console.Write("Input angle 2 of triangle: ");
    angb= Convert.ToInt32(Console.ReadLine()); 

    Console.Write("Input angle 3 of triangle: ");
    angc= Convert.ToInt32(Console.ReadLine()); 
 
    /* Calculate the sum of all angles of triangle */  
    sum = anga + angb + angc;   
  
    /* Check whether sum=180 then its a valid triangle otherwise not */  
    if(sum == 180)   
    {  
        Console.Write("The triangle is valid.\n");  
    }  
    else  
    {  
        Console.Write("The triangle is not valid.\n");  
    }  
  }

}