public Polyhedron3D rotAboutY(double turnAngle)
	{
		Polygon3D[] rotatedPolys = new Polygon3D[polygons.length];
		
		for(int i = 0; i < polygons.length; i ++)
		{
			rotatedPolys[i] = polygons[i].rotAboutY(turnAngle);
		}
		
		return new Polyhedron3D(rotatedPolys);
	}