Do you know what a circle looks like? Can you name some other shapes too? A two dimensional (2D) shape is made of lines. Sometimes the lines are curved and sometimes the lines are straight.

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 ... have flat or curved faces.

Obviously, we are all familiar will basic shapes: squares, triangles, circles, to name but a few ... of sharp corners and their soft, highly curved geometry makes soft cells ideal candidate ...