Counterclockwise (default), IsLargeArc
<Canvas xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> <Path Stroke="Blue" StrokeThickness="3"> <Path.Data> <PathGeometry> <PathFigure StartPoint="144 144"> <ArcSegment Point="240 240" Size="144 96" RotationAngle="45" IsLargeArc="True" /> </PathFigure> </PathGeometry> </Path.Data> </Path> </Canvas>