Two-dimensional (2D) shapes are completely flat. They cannot be picked up. A polygon is a 2D shape with straight sides that meet at vertices. Polygons have names that show the number of sides they ...

Lundström Design has announced the release of TouchCAD 3.0, a new version of its 3D modeling and unfolding program for Mac OS X, “Classic” Mac OS, and various flavors of Windows. TouchCAD 3.0 enables ...