xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="RoundedRectangles" Height="449" Width="340"
>
Corner radius of 100 (X) and 60 (Y).
Width="100" Height="60" Margin="5" HorizontalAlignment="Left">