Jisho

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Noun
1. area; vicinity; region​
Noun
2. side; edge​Mathematics
  • せいほうけい正方形
  • には
  • よっ四つ
  • の
  • へん辺
  • が
  • ある
  • 。
A square has four sides.
Noun
3. circumstances​
Wikipedia definition
4. Edge (geometry)​In geometry, an edge is a line segment joining two adjacent vertices in a polygon. Thus applied, an edge is a connector for a one-dimensional line segment and two zero-dimensional objects. A planar closed sequence of edges forms a polygon. In a polyhedron, exactly two faces meet at every edge, while in higher dimensional polytopes, three or more faces meet at an edge. In a polygon, an edge can also be called a facet or side, bounding the polygon.
Read “Edge (geometry)” on English Wikipedia
Read “辺” on Japanese Wikipedia
Read “Edge (geometry)” on DBpedia

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