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Importing Wikidata short description: "Planar surface that forms part of the boundary of a solid object" (Shortdesc helper) |
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{{Short description|Planar surface that forms part of the boundary of a solid object}}
In [[solid geometry]], a '''face''' is a flat [[surface]] (a [[Plane (geometry)|planar]] [[region (mathematics)|region]]) that forms part of the boundary of a solid object;<ref>{{cite book | title = [[Merriam-Webster's Collegiate Dictionary]] | edition = Eleventh | publisher = [[Merriam-Webster]] | location = Springfield, MA | year = 2004}}</ref> a three-dimensional solid bounded exclusively by faces is a ''[[polyhedron]]''.
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