public static void Main()
{
Figure a = new Figure(5, 3);
a = a.GetRotatedSize(15);
Console.WriteLine(a.Width);
Console.WriteLine(a.Height);
}
public Figure GetRotatedSize(double angleOfFigureRotation)
{
double angleCos = Math.Cos(angleOfFigureRotation);
double angleSin = Math.Sin(angleOfFigureRotation);
double resultSizeWidth = (Math.Abs(angleCos) * this.Width) + (Math.Abs(angleSin) * this.Height);
double resultSizeHeight = (Math.Abs(angleSin) * this.Width) + (Math.Abs(angleCos) * this.Height);
Figure result = new Figure(resultSizeWidth, resultSizeHeight);
return result;
}