C# Sharp Exercises: Check whether a triangle is Equilateral, Isosceles or Scalene

C# Sharp Conditional Statement: Exercise-14 with Solution

Write a C# Sharp program to check whether a triangle is Equilateral, Isosceles or Scalene.

Sample Solution:-

C# Sharp Code:

using System;  
public class Exercise14  
{  
    public static void Main() 
{  
    int sidea, sideb, sidec; 
    Console.Write("\n\n");
    Console.Write("Check whether a triangle is Equilateral, Isosceles or Scalene:\n");
    Console.Write("----------------------------------------------------------------");
    Console.Write("\n\n");



    Console.Write("Input side 1 of triangle: ");
    sidea= Convert.ToInt32(Console.ReadLine());

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

    Console.Write("Input side 3 of triangle: ");
    sidec= Convert.ToInt32(Console.ReadLine());  
 

  
    if(sidea==sideb && sideb==sidec) 
    {  
        Console.Write("This is an equilateral triangle.\n");  
    }  
    else if(sidea==sideb || sidea==sidec || sideb==sidec) 
    {  
        Console.Write("This is an isosceles triangle.\n");  
    }  
    else 
    {  
        Console.Write("This is a scalene triangle.\n");  
    }  
 } 
} 

Sample Output:

Check whether a triangle is Equilateral, Isosceles or Scalene:                                                
----------------------------------------------------------------                                                                                                    
Input side 1 of triangle: 40                                                                                  
Input side 2 of triangle: 20                                                                                  
Input side 3 of triangle: 20                                                                                  
This is an isosceles triangle.

Flowchart:

C# Sharp Code Editor:

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