<Window x:Class="SampleArc.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="SampleArc" Height="300" Width="300">
<Grid>
<Path Stroke="Black" Fill="Gray" StrokeThickness="2" Margin="-107,39,-67,-13">
<Path.Data>
<PathGeometry>
<PathGeometry.Figures>
<PathFigureCollection>
<PathFigure StartPoint="200,200">
<PathFigure.Segments>
<PathSegmentCollection>
<ArcSegment
Point="300,200"
Size="200,50" RotationAngle="90"
IsLargeArc="False" SweepDirection="Clockwise" />
</PathSegmentCollection>
</PathFigure.Segments>
</PathFigure>
</PathFigureCollection>
</PathGeometry.Figures>
</PathGeometry>
</Path.Data>
</Path>
</Grid>
</Window>