The 3D Polygon Primitive

A polygon is a straight-sided shape of three or more edges; it is a two-faced shape that has a front and a back. You can set different colors for each side. It is defined by three-dimensional points (vertices) and the straight lines that connect them (edges). The interior region of the polygon’s surface is called the face. Add it to your 3D view by clicking the polygon icon in the Primitives section. A polygon primitive can take on any number of shapes. Like the plane, a polygon is a two-faced primitive that has a front and a back; you can set different colors for each side of the polygon. Default property values for polygons are set in the Preferences tab, in the New 3D Polygon Default Settings.

Add a polygon primitive to your 3D view by clicking the polygon icon in the Primitives section of the Home ribbon. The polygon will appear in your 3D view, and you will see it listed in the Explorer and the Properties tab.
Use the tools in the Home ribbon's Manipulator section to change the shape, size, and orientation of the polygon; this is easier than using the polygon's properties to do the same.
Use the polygon's properties to make other changes to the polygon. Many of the polygon's properties are described in Common Properties for All 3D Primitives.
To survey the 3D display, use the tools described in Navigating in a 3D Viewport and the perspective buttons described in View Section of the 3D Home Ribbon.

You can:

Add a dynamic from the Dynamic ribbon

Move, scale, rotate, transform, or duplicate the polygon

Change the look (color, texture..)