File:Regular_polygon_20_annotated.svg · Wikimedia Commons · See Wikimedia Commons
icosagon
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In geometry, an icosagon or 20-gon is a twenty-sided polygon. The sum of any icosagon's interior angles is 3240 degrees.
Wikidata facts
- Subclass of
- polygon
- Followed by
- icosihenagon
- Follows
- enneadecagon
- Image
- Regular polygon 20 annotated.svg
- Has parts of class
- vertex
Show 4 more facts
- has facet polytope
- edge
- has vertex figure
- line segment
- Commons category
- 20-gons
- maintained by WikiProject
- WikiProject Mathematics
Sources (1)
via Wikidata · CC0
~7 min read
Encyclopedic overview
10 sectionsContents
- Regular icosagon
- Uses
- Construction
- The golden ratio in an icosagon
- Symmetry
- Dissection
- Related polygons
- Petrie polygons
- References
- External links
In geometry, an icosagon or 20-gon is a twenty-sided polygon. The sum of any icosagon's interior angles is 3240 degrees.
==Regular icosagon==
Excerpted from Wikipedia’s “icosagon” article, available under the CC BY-SA 4.0 licence.