using System;

namespace Dotmyself
{
    /// <summary>
    /// A derived class of Shape : a polygon with three corners and three edges.
    /// Author : Hyacinthe MENIET
    /// </summary>
    class Triangle : Shape
    {
        public double Edge;

        public Triangle(String name, double edge)
            : base(name)
        {
            Edge = edge;
        }

        public override double Area()
        {
            return (Edge * Edge * Math.Sqrt(3)) / 4;
        }
    }
}