polygons [3]![click to hear](/images/speaker.jpg)
Geometric plane figures with several sides and a number of equal angles.
regular hendecagon ![click to hear](/images/speaker.jpg)
Polygon with 11 (hendeca = eleven) sides and equal angles.
regular dodecagon ![click to hear](/images/speaker.jpg)
Polygon with 12 (dodeca = twelve) sides and equal angles.
regular decagon ![click to hear](/images/speaker.jpg)
Polygon with 10 (deca = ten) sides and equal angles.
regular nonagon ![click to hear](/images/speaker.jpg)
Polygon with nine (nona = nine) sides and equal angles.
regular octagon ![click to hear](/images/speaker.jpg)
Polygon with eight (octo = eight) sides and equal angles.