Page.xaml

<UserControl x:Class="PolyBezierSegment.Page"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
    Width="710" Height="300">
    <Grid x:Name="LayoutRoot" >
        <!-- <SnippetPolyBezierSegment> -->
        <Canvas Width="500" Height="100">
          <Path Stroke="Red" StrokeThickness="2">
            <Path.Data>
              <PathGeometry>
                <PathGeometry.Figures>
                  <PathFigureCollection>

                    <!-- The StartPoint specifies the starting point of the first curve. -->
                    <PathFigure StartPoint="10,100">
                      <PathFigure.Segments>
                        <PathSegmentCollection>

                          <!-- The PolyBezierSegment specifies two cubic Bezier curves.
                           The first curve is from 10,100 (start point specified above)
                           to 300,100 with a control point of 0,0 and another control
                           point of 200,0. The second curve is from 300,100 
                           (end of the last curve) to 600,100 with a control point of 300,0
                           and another control point of 400,0. -->
                          <PolyBezierSegment Points="0,0 200,0 300,100 300,0 400,0 600,100" />
                        </PathSegmentCollection>
                      </PathFigure.Segments>
                    </PathFigure>
                  </PathFigureCollection>
                </PathGeometry.Figures>
              </PathGeometry>
            </Path.Data>
          </Path>
        </Canvas>
        <!-- </SnippetPolyBezierSegment> -->
    </Grid>
</UserControl>