Category:Definitions/External Angles
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This category contains definitions related to External Angles.
Related results can be found in Category:External Angles.
Contrary to intuition, the external angle of a vertex of a polygon is not the size of the angle between the sides forming that vertex, as measured outside the polygon.
An external angle is in fact an angle formed by one side of a polygon and a line produced from an adjacent side.
While $\angle AFE$ is the internal angle of vertex $F$, the external angle of this vertex is $\angle EFG$.
Pages in category "Definitions/External Angles"
The following 4 pages are in this category, out of 4 total.