The net of a 3D shape is what it looks like if it is opened out flat. There are many types of nets for the different 3D shapes. A net is made from polygons that can be folded and joined to make a ...

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 ...

Flat-pack furniture is commonplace, and flat-pack pasta might be one day too. Wen Wang of Carnegie Mellon University in Pennsylvania and her colleagues have developed edible 2D pasta that swells into ...

When you want to visually imply growth, steps, directions, output or even a process, you might choose an arrow shape. Arrows are one of the most commonly used shapes in PowerPoint, and fortunately ...