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 irregular. If all the straight sides of a shape ...

The plural of vertex is vertices. The number of sides and vertices are the properties of a shape. Let’s look at the number of sides and vertices that some 2D shapes have. Here is a triangle.

You live on the surface of a giant sphere, like a beach ball the size of the Earth with a few bumps added. The surface of the sphere and the plane are two possible 2D spaces, meaning you can walk in ...

The surface of the sphere and the plane are two possible 2D spaces, meaning you can walk in two directions: north and south or east and west. What other possible spaces might you be living on?

Photogrammetry is the process of taking 2D images and merging them into a volumetrically correct 3D model. Through this video I teach the best practices for shooting the photos for the highest quality ...