Polyhedron

A polyhedron is a three-dimensional figure whose surfaces are polygons.  All polyhedra use the same terminology to define their parts.   

  • Face: each polygon or flat surface
    • Base: the bottom surface of a solid object
    • Lateral face: a face that is not a base of the figure
  • Edge: a segment that is formed by the intersection of two faces
    • Lateral edge: a segment that is formed by the intersection of two lateral faces
  • Vertex: a point where three or more edges intersect

fundamentals

 

 

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