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15-03-2017
Mathematics

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explain why a 3 dimensional figure with a curved surface is not a polyhedron

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15-03-2017

Polyhedron, by definition, is formed by intersecting planes, so each part of its surface is either a vertex or an edge, or a flat piece of a plane.
Explanation:
The definition of polyhedron implies that each side is a piece of a flat surface.

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