static void Main()
{
Console.Write("Enter Radius of a circle: ");
double a = int.Parse(Console.ReadLine());
Circle circle = new Circle(a);
Console.WriteLine("Circle:");
circle.CalculateArea();
Console.WriteLine();
Console.Write("Enter Width of a Rectangle: ");
double b = int.Parse(Console.ReadLine());
Console.Write("Enter Height of a Rectangle: ");
double c = int.Parse(Console.ReadLine());
Rectangle rect = new Rectangle(b, c);
Console.WriteLine("Rectangle:");
rect.CalculateArea();
rect.CalculatePerimeter();
Console.WriteLine();
Console.Write("Enter Width of a Rhombus: ");
double d = int.Parse(Console.ReadLine());
Console.Write("Enter Height of a Rhombus: ");
double e = int.Parse(Console.ReadLine());
Rhombus rhombus = new Rhombus(d, e);
Console.WriteLine("Rhombus:");
rhombus.CalculateArea();
rhombus.CalculatePerimeter();
Console.WriteLine();
}
public void CalculatePerimeter_CorrectResult_Test()
{
const double expected = 10;
var actual = Math.Round(_rhombus.CalculatePerimeter(), 1);
Assert.AreEqual(expected, actual);
}