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 ...

It’s an orgy of geometry, here on Earth. You got all kinds of shapes: Squares, trapezoids, even the occasional rhombus. Apples, desk-chairs, and dandelions—just an abundance of shape-having stuff.

Pasta comes in many shapes and sizes, which is part of its inherent delight. But all those irregular shapes tend to be inefficient when it comes to packaging. So what if you could buy your pasta of ...