WPF，请教这个几何图形怎么设置线条的粗细

WPF，请问这个几何图形如何设置线条的粗细

请问这个几何图形如何设置线条的粗细？                                                                            
[解决办法]
下面红色标记了的就是你所要的。
<Canvas Height="295" Name="canvas1" Width="418">
            <Path Stroke="Blue" StrokeThickness="5">
                <Path.Data>
                    <PathGeometry>
                        <PathFigure IsClosed="True" StartPoint="10,100">
                            <LineSegment Point="100,100"/> 
 
                            <LineSegment Point="100,50"/>
                        </PathFigure>
                    </PathGeometry>
                </Path.Data>
            </Path>
        </Canvas>
[解决办法]