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This category contains definitions related to Surfaces in the context of Geometry.
Related results can be found in Category:Surfaces.

In the words of Euclid:

A surface is that which has length and breadth only.

(The Elements: Book $\text{I}$: Definition $5$)


An extremity of a solid is a surface.

(The Elements: Book $\text{XI}$: Definition $2$)


This category has only the following subcategory.