Vertex angle

Vertex angle

In geometry, a vertex angle is the angle associated with a vertex of a polytope.

In a polygon

The vertex angle (denoted by "α"1 or "A"1) in a polygon is measured by the interior side of the vertex. For any simple "n"-gon, the sum of the interior angles is π×("n" − 2) radians or 180×("n" − 2) degrees. [citeweb
last=Weisstein
first=Eric W.
title="Vertex Angle." From MathWorld--A Wolfram Web Resource.
url=http://mathworld.wolfram.com/VertexAngle.html
accessdate=2008-04-30]

ee also

*Complementary angles
*Supplementary angles
*Central angle
*Inscribed angle

References


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