namespace assignment_2_question_4_main_method
{
    class Program
    {
        static void Main(string[] args)
        {
            double radius;
            double circumference;
            double diameter;
            double totalArea;
            const double PI = 3.14159;

            Circle A = new Circle();

            Console.Write("What is the Circles radius => ");
            radius = Convert.ToDouble(Console.ReadLine());

            totalArea = radius * radius * PI;
            circumference = 2 * PI * radius;
            diameter = radius * 2;


            Console.WriteLine("The circle's area is => " + totalArea);
            Console.WriteLine("The circle's circumference is => " + circumference);
            Console.WriteLine("The circle's diameter is => " + diameter);

        }
    }
}