<Window x:Class="Drawing.SimpleArc"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="SimpleArc" Height="300" Width="300"
    >
    <Grid>
      <Path Stroke="Blue" StrokeThickness="3">
        <Path.Data>
          <PathGeometry>
            <PathGeometry.Figures>
              <PathFigureCollection>
                <PathFigure IsClosed="False" StartPoint="250,150" >
                  <PathFigure.Segments>
                    <PathSegmentCollection>
                      <ArcSegment Point="10,100" Size="200,300" SweepDirection="Clockwise" />
                    </PathSegmentCollection>
                  </PathFigure.Segments>
                </PathFigure>
              </PathFigureCollection>
            </PathGeometry.Figures>
          </PathGeometry>
        </Path.Data>
      </Path>
    </Grid>
</Window>
