using System;

​

abstract class Figura

{

    public enum Color { Rojo, Azul, Verde, Naranja }

    private Color color;

​

    private Color GetColor() { return color; }

    public void SetColor(in Color color) { this.color = color; }        

    protected Figura(in Color color)

    {

        SetColor(color);

    }

    abstract public double Area();

    abstract public double Perimetro();

    public override string ToString()

    {

        return $"Color: {GetColor()}\nArea: {Area():F2} cm2\nPerímetro: {Perimetro()} cm\n";

    }

}

​

class Circulo : Figura

{

    private double radio_cm;

​

    public void SetRadio(double radio_cm) { this.radio_cm = radio_cm;  }

    private double GetRadio() { return radio_cm; }

    public Circulo(in Color color, double radio_cm) : base(color)

    {

        SetRadio(radio_cm);

    }

    public override double Area() { return Math.PI * Math.Pow(GetRadio(), 2); }

    public override double Perimetro() { return Math.PI * GetRadio() * 2; }

    public override string ToString()

    {

        return $"Círculo\nRadio: {GetRadio()} cm\n{base.ToString()}";

    }

}

​

class Rombo : Figura

{

    private double diagonal1_cm;

    private double diagonal2_cm;

​

    public void SetDiagonal1(double d_cm) { diagonal1_cm = d_cm; }

    private double GetDiagonal1() { return diagonal1_cm; }

    public void SetDiagonal2(double d_cm) { diagonal2_cm = d_cm; }

    private double GetDiagonal2() { return diagonal2_cm; }

    private double GetLado() // Accesor Calculado

    {

        return Math.Sqrt(Math.Pow(GetDiagonal1()/2d, 2d) + Math.Pow(GetDiagonal2()/2d, 2d));

    }

    public Rombo(in Color color, double d1_cm, double d2_cm) : base(color)

    {

        SetDiagonal1(d1_cm);

        SetDiagonal2(d2_cm);

    }

    public override double Area()

    {

        return GetDiagonal1() * GetDiagonal2() / 2d;

    }

    public override double Perimetro()

    {

        return GetLado() * 4d;

    }

    public override string ToString()

    {

        return $"Rombo\nDiagonal1: {GetDiagonal1()} cm\nDiagonal2: {GetDiagonal2()} cm\nLado: {GetLado()} cm\n{base.ToString()}";

    }

}

​

class Cuadrado : Figura

{

    private double lado_cm;

​

    public void SetLado(double lado_cm) { this.lado_cm = lado_cm; }

    private double GetLado() { return lado_cm; }

    public Cuadrado(in Color color, double lado_cm) : base(color)

    {

        SetLado(lado_cm);

    }

    public override double Area()

    {

        return GetLado() * GetLado();

    }

    public override double Perimetro()

    {

        return GetLado() * 4d;

    }

    public override string ToString()

    {

        return $"Cuadrado\nLado: {GetLado()} cm\n{base.ToString()}";

    }

}

​

public class Program

{

    static void Main()

{

    Figura[] figuras = new Figura[] 

    { 

        new Cuadrado(Figura.Color.Rojo, 2), new Rombo(Figura.Color.Azul, 2, 2),  new Circulo(Figura.Color.Verde, 2)

    };

    foreach (Figura f in figuras) 

        Console.WriteLine(f);

}

}