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 ...

Introduction With a little time, you can probably find the center of simple shapes such as circles and squares pretty easily. But how do you find the “middle” of an irregular shape such as a drawing ...

These labs simplify the real-life conditions that affect structures (shapes), in order to illustrate key concepts. In the real world, many variables affect the strength and stability of any give shape ...