Central Angle of a Regular Polygon
Definition: (Billstein, Libeskind, and Lott) An angle whose vertex lies at the center of the polygon and whose sides intersect two adjacent vertices of the polygon.
Example:
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The angle <P2OP1 is a central angle of the given pentagon. The central angle measures 72 degrees because 360 divided by 5 (the number of sides) equals 72. |