Interior and Exterior Angles of Regular Polygons

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number of sides
3 sided regular polygons
sum of interior angles = 180.°
sum of exterior angles = 900.°
As the number of sides in a regular polygon increases, so does the size of the interior angles.
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External Links

Angle (Wolfram MathWorld)
Exterior Angle (Wolfram MathWorld)

Permanent Citation

Phillip Mangiaracina
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​"Interior and Exterior Angles of Regular Polygons"​
​http://demonstrations.wolfram.com/InteriorAndExteriorAnglesOfRegularPolygons/​
​Wolfram Demonstrations Project​
​Published: April 24, 2008