string Color {get; set; }
public class Triangle : IShape, IColor
public string Color {get; set; }
double Height {get; set; }
public Triangle(string n, double b, double h, string c)
public double CalculateArea()
newArea = Base*Height*.5;
if (Color.ToLower() == "yellow")
public static void Main()
Triangle triangle1 = new Triangle("Triangle", 8.5, 4.2, "blue");
Console.WriteLine(triangle1.CalculateArea());
Console.WriteLine(triangle1.IsYellow());