public static double CalcDiagonalYZ(Figure3D figure)
 {
     double distance = Figure2DUtilities.CalcDistance2D(0, figure.Height, 0, figure.Depth);
     return distance;
 }
 public static double CalcDiagonalXYZ(Figure3D figure)
 {
     double distance = CalcDistance3D(0, figure.Width, 0, figure.Height, 0, figure.Depth);
     return distance;
 }
 public static double CalcDiagonalXY(Figure3D figure)
 {
     double distance = Figure2DUtilities.CalcDistance2D(0, figure.Width, 0, figure.Height);
     return distance;
 }
 public static double CalcVolume(Figure3D figure)
 {
     double volume = figure.Width * figure.Height * figure.Depth;
     return volume;
 }