Vertex angle
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An angle with θ as the vertex angle.
In geometry, a vertex angle is the angle associated with a vertex of a polygon.
The vertex angle (denoted by α1 or A1) 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.[1]
[edit] See also
[edit] References
- ^ Weisstein, Eric W., "Vertex angle" from MathWorld.
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