2D shapes can be described by their sides, their angles and their symmetry. The sides might be equal in length and some might be parallel. The angles could be right angles, but sometimes they are ...

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 ...

Are you fond of drawing some random doodles? Have you ever imagined some magic tricks that would transform your boring 2D picture into a realistic 3D model? Well then, turning a 2D shape into a 3D ...

Help children to use, discuss and think about shapes in mathematical terms with suggestions from Sheila Ebbutt and Carole Skinner. Shapes of things we can see or touch are mostly too complex to ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Some examples of solids that incorporate 2D shapes are mentioned in this video by Sanchit — for example ...