C#_OOP_2a_Figure.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace OOPGeometry2
{
    abstract class Figure : SurfaceCalculatable
    {
        private string figureType;

        public Figure(string figureType)
        {
            this.figureType = figureType;
        }

        public virtual double CalculateSurface()
        {
            return 0;
        }

        public string GetFigureType()
        {
            return figureType;
        }
    }
}