Assertion: polyhedron's surface | /r/HasProperty | decomposed piecewise
Facets:
Source sentences:
text: He also used "polyhedral" to describe any general surface which has been decomposed piecewise such that the pieces are flat faces, including open surfaces such as (say) a paraboloid - many people mistakenly assume that a "polyhedral surface" must be the surface of a polyhedron, and take their understanding of a polyhedron accordingly.