**A square is a two-dimensional shape that does not have a face, but a square is one of the faces of a cube.** Faces are associated with solid figures, such as cylinders, cubes and pyramids. Two-dimensional shapes have breadth and width, but they do not have thickness.

The attributes of plane shapes include a defined number of corners or sides. Solid shapes are defined by edges, vertices and faces, and they may be flat or thick. The edges of solid shapes are where two faces join; for example, a cube has a total of six square faces that create 12 edges.

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