using System;

​

public class Program

{

    static private double leg(double a, double c)

    {

        double a2 = a * a;

        double c2 = c * c;

        return Math.Sqrt(c2 - a2);

    }

​

    static private double pyth(double a, double b)

    {

        double a2 = a * a;

        double b2 = b * b;

        return Math.Sqrt(a2 + b2);

    }

​

    public static void Main()

    {

        string restart = "q";

        while (restart != "q")

        {

            Console.WriteLine("Woukd you like to find a leg or the hypotnuse? enter 1 for leg and 2 for hypotnuse.");

            string option = Console.ReadLine();

            if (option == "1")

            {

                Console.WriteLine("Please enter you value for a");

                double one = double.Parse(Console.ReadLine());

                Console.WriteLine("please enter your value for c");

                double two = double.Parse(Console.ReadLine());

                Console.WriteLine("Your answer is" + leg(one, two));

            }

            else if (option == "2")

            {

                Console.WriteLine("Please enter your value for a");

                double three = double.Parse(Console.ReadLine());

                Console.WriteLine("Please enter your value for b");

                double four = double.Parse(Console.ReadLine());

                Console.WriteLine("your answer is" + pyth(three, four));

            }

            else

            {

                Console.Clear();

                Console.WriteLine("please enter q to quit or anything else to continue");

                restart = Console.ReadLine();

            }

​

            Console.WriteLine("please enter q to quit or anything else to continue");

            restart = Console.ReadLine();

        }

    }

}