The Pyramids takes users on a virtual journey inside the Pyramids and tombs of ancient Egypt, providing text, audio commentary, and rotatable 3D representations of important artifacts. Pyramids 3D ...

Schools sometimes teach “fact families:” triangles that connect three numbers based on their sum and differences. For example, the triangle below expresses the series of relationships: 5 + 3 = 8, 8 - ...

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 ...