Definition:Adjacent

Disambiguation

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Adjacent may refer to:

• Adjacent (Graph Theory):
  • Two vertices are said to be adjacent or neighboring if there exists an edge to which they are both incident.
  • Two faces of a planar graph are said to be adjacent or neighboring if there exists an edge to which they are both incident.

• Adjacent (Geometry):
  • Two angles are adjacent if they share a line. Similarly:
  • The two sides of a polygon that form a particular vertex are adjacent to that vertex.
  • The two vertices of a polygon that terminate a particular side are adjacent to that side.
  • Two sides of a polygon that meet at the same vertex are adjacent to each other.

• Adjacent (in a Triangle): The two sides of a triangle that form a particular vertex are adjacent to that vertex. Usually used in the context of right triangles.