Jisho

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Noun
1. development; expansion plan; interior elevation
2. net (of a polyhedron); developmentMathematics
Wikipedia definition
3. Net (polyhedron)In geometry the net of a polyhedron is an arrangement of edge-joined polygons in the plane which can be folded (along edges) to become the faces of the polyhedron. Polyhedral nets are a useful aid to the study of polyhedra and solid geometry in general, as they allow for models of polyhedra to be constructed from material such as thin cardboard.
Read “Net (polyhedron)” on English Wikipedia
Read “展開図” on Japanese Wikipedia
Read “Net (polyhedron)” on DBpedia

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