xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Combined Geometry" Height="340" Width="300"> Margin="10,0,0,0"> GeometryCombineMode="Exclude"> RadiusX="50" RadiusY="50" /> RadiusX="50" RadiusY="50" />