public class Triangle: IShape, IColor
Console.WriteLine("Name string cannot be of length {0}", value.Length);
public string Color{get; set;}
public double Base{get; set;}
public double Height{get; set;}
public Triangle(string N, double B, double H, string C) {
public double CalculateArea(){
return Base * Height * 0.5;
if (Color.ToLower() == "yellow"){
public static void Main()
Triangle t = new Triangle("Triangle", 8.5, 4.2, "blue");
Console.WriteLine(t.CalculateArea());
Console.WriteLine(t.IsYellow());