but sometimes they are greater than or less than a right angle. A 2D shape could have line symmetry or rotation symmetry, or both! 3D shapes are described by their faces, edges and vertices.

The existence of multiple magic angles adds an extra dimension to the tunability of twisted 2D materials, as each magic angle offers a unique set of electronic properties that can be accessed by ...

but sometimes they are greater than or less than a right angle. A 2D shape could have line symmetry or rotation symmetry, or both! 3D shapes are described by their faces, edges and vertices.