About: Vertex angle

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In geometry, a vertex is an angle (shape) associated with a vertex of an n-dimensional polytope. In two dimensions it refers to the angle formed by two intersecting lines, such as at a "corner" (vertex) of a polygon. In higher dimensions there can be more than two lines (edges) meeting at a vertex, making a description of the angle shape more complicated. The term vertex angle is sometimes used synonymously with face angle, i.e. the angle between two edges meeting at a vertex. It may also refer to the (higher-dimensional) interior solid angle at a vertex.

Attributes	Values
rdf:type	anatomical structure
rdfs:label	Vertex angle (en)
rdfs:comment	In geometry, a vertex is an angle (shape) associated with a vertex of an n-dimensional polytope. In two dimensions it refers to the angle formed by two intersecting lines, such as at a "corner" (vertex) of a polygon. In higher dimensions there can be more than two lines (edges) meeting at a vertex, making a description of the angle shape more complicated. The term vertex angle is sometimes used synonymously with face angle, i.e. the angle between two edges meeting at a vertex. It may also refer to the (higher-dimensional) interior solid angle at a vertex. (en)
foaf:depiction
dcterms:subject	Euclidean geometry Angle
Wikipage page ID	17202563 (xsd:integer)
Wikipage revision ID	1066403637 (xsd:integer)
Link from a Wikipage to another Wikipage	Degree (angle) Euclidean geometry Polyhedron Complementary angles Geometry N-sphere Corner reflector Angle Polygon Trirectangular tetrahedron Angular defect Angle Parallelepiped Right angle Tetrahedron Hypercube Supplementary angles Edge (geometry) Spherical trigonometry Dihedral angle Solid angle Spherical law of cosines Radian Vertex (geometry) Face (geometry) Spherical excess Polytope Polar sine Interior angle
sameAs	Vertex angle Vertex angle Vertex angle Vertex angle
dbp:wikiPageUsesTemplate	dbt:Fact dbt:Reflist dbt:Elementary-geometry-stub
thumbnail	wiki-commons:Special:FilePath/Remint3.svg?width=300
has abstract	In geometry, a vertex is an angle (shape) associated with a vertex of an n-dimensional polytope. In two dimensions it refers to the angle formed by two intersecting lines, such as at a "corner" (vertex) of a polygon. In higher dimensions there can be more than two lines (edges) meeting at a vertex, making a description of the angle shape more complicated. In three dimensions and three-dimensional polyhedra, a vertex angle is a polyhedral angle or n-hedral angle. It is described by a sequence of n face angles, which are the angles formed by two edges of polyhedron meeting at the vertex, or by a sequence of n dihedral angles, which are the angles between two faces sharing the vertex. The angle may be quantified using a single number by the interior solid angle at the vertex (the spherical excess), which is related to the sum of the dihedral angles, or by the angular defect (or excess) of the vertex, which is related to the sum of the face angles, or other metrics such as the polar sine. The simplest type of polyhedral angle is a trihedral angle or trihedron (bounded by three planes), as found at the vertices of a Parallelepiped or tetrahedron. For higher-dimensional polytopes, a vertex angle can be quantified using a higher-dimensional solid angle, i.e. by the portion of the n-sphere around the vertex that is interior to the polytope. Face and dihedral angles also generalize to higher dimensions. The term vertex angle is sometimes used synonymously with face angle, i.e. the angle between two edges meeting at a vertex. It may also refer to the (higher-dimensional) interior solid angle at a vertex. (en)
gold:hypernym	Angle
prov:wasDerivedFrom	wikipedia-en:Vertex_angle?oldid=1066403637&ns=0
page length (characters) of wiki page	4009 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Vertex_angle
is Link from a Wikipage to another Wikipage of	Schwarz triangle Solid angle Radiation angle Polar sine
is foaf:primaryTopic of	wikipedia-en:Vertex_angle

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