Draw a Non-rectangular object in WPF

WPF lets you create non-rectangular shapes. We can use the RadiusX and the RadiusY attributes to make the edges non-rectangular in a Rectangle.

See the markup below:
<Rectangle Width=""50"" Height=""50"" Fill=""Red""  Stroke=""Green""     RadiusX=""12"" RadiusY=""12"" />

The RadiusX and the RadiusY attributes make the edges curved