//Daniyal Mohammed - ICS4U1 - Activity 1: Numeric Data Types Assignment #3 - September 11th 2020 - The program utilizes Heron's formula to find the area of a scalene triangle

using System;

​

public class Program

{

    public static void Main()

    {

        double a, b, c, s, area; string units; //double variables used to store the values of all sides, semi-perimeter and total area of the triangle, string variable to hold units

        Console.WriteLine("The program calculates the area of a scalene triangle using Heron's formula"); //lets the user know the purpose for the application

        Console.Write("Please enter the length of side a: "); //asks the user for the length of one of the sides

        a = int.Parse(Console.ReadLine()); //parses the users input in order to be able to used in calculations

        Console.Write("Please enter the length of side b: "); //asks the user for the length of one of the sides

        b = int.Parse(Console.ReadLine());//parses the users input in order to be able to used in calculations

        Console.Write("Please enter the length of side c: "); //asks the user for the length of one of the sides

        c = int.Parse(Console.ReadLine());//parses the users input in order to be able to used in calculations

            if (a == b | a == c | b == c) //check to make sure it is a scalene triangle, using an if statement

            {

                Console.WriteLine("All 3 side lengths must be different"); //lets the user know the error

            }

            if (a != b & a != c & b != c) //if all 3 side lenghts are different..

            {

                Console.Write("Please enter the units: "); //asks the user to enter the units for accuracy

                units = Console.ReadLine(); //stores the units as a string variable

                s = (a + b + c) / 2; //utilizing the formula to find the s variable

                area = Math.Sqrt((s * (s - a) * (s - b) * (s - c))); //using Heron's formula to find the total area

​

                Console.WriteLine("The area is " + area + " " + units + "^2"); //final statement which combines the area and units 

​

    }

    }

}

​