Two-dimensional (2D) shapes are completely flat. They have two dimensions – length and width. A polygon is a closed 2D shape with straight sides that meet at vertices. Polygons can be regular or ...

Microsoft's default works well in all scenarios, and I feel no need to change it when working in Microsoft Excel. Calibri, ...

Symmetry is when one side of a shape is a mirror image of the other side. Lots of buildings and everyday objects use symmetry because it looks appealing to the human eye. Watch the video below ...

There are two built-in 2D primitive shapes that OpenSCAD provides: square(), and circle(). You can still use them in the familiar ways that OpenSCAD provides: ...