Rectangle
The Rectangle primitive is a rectangle or square. The polygon can be made from a Bezier curve or a Polyline. The Bezier type is equivalent to a curve made by the Bezier tool. The Polyline is a connected sequence of line segments. The width and height of the polygon are adjusted using the Size X and Size Y settings.
Note: You can fill the shape using the Curve Fill tool.
Rectangle Properties
Rectangle 

Enable 
Toggles the primitive. 
Type 
Selects the curve type: • Bezier  Draw using Bezier curve control points. • Polyline  Draw using a connected series of lines. 
Position X, Y 
Sets the X, Y position along the plane defined by Axis. 
Size X, Y 
Sets the width and height. 
Axis 
Chooses the plane on which to draw the polygon: • X  Align to the YZ plane. • Y  Align to the XZ plane. • Z  Align to the XY plane. 