### Nonagon

In geometry, a nonagon n (or enneagon n) is a nine-sided polygon. The name `nonagon` is a prefix hybrid formation, from Latin (nonus, `ninth` + gonon), used equivalently, attested already in the 16th century in French nonogone and in English from the 17th century. The name `enneagon` comes from Greek enneagonon (εννεα, `nine` + γων...
Found on http://en.wikipedia.org/wiki/Nonagon

### Nonagon

• (n.) A figure or polygon having nine sides and nine angles. • (n.) A figure or polygon having nine sides and nine angles.
Found on http://thinkexist.com/dictionary/meaning/nonagon/

### nonagon

noun a nine-sided polygon
Found on https://www.encyclo.co.uk/local/20974

### Nonagon

Non'a·gon noun [ Latin nonus ninth + Greek ... angle.] (Math.) A figure or polygon having nine sides and nine angles.
Found on http://www.encyclo.co.uk/webster/N/29

### Nonagon

A nine sided polygon. Each internal angle is 140° and the sum of the internal angles is 1260°. See also: Polygon.
Found on http://www.diracdelta.co.uk/science/source/n/o/nonagon/source.html

### Nonagon

A nonagon (or enneagon) is a nine-sided polygon.
Found on http://www.probertencyclopaedia.com/browse/GN.HTM

### nonagon

A polygon with 9 sides. A nonagonal number is a number of the form n(7n - 5)/2.
Found on http://www.daviddarling.info/encyclopedia/N/nonagon.html

### nonagon

nonagon, nonagonal; enneagon A polygon having nine angles and nine sides.
Found on http://www.wordinfo.info/words/index/info/view_unit/1409/

### nonagon

[n] - a nine-sided polygon
Found on http://www.webdictionary.co.uk/definition.php?query=nonagon
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