polygons [3]

Geometric plane figures with several sides and a number of equal angles.

regular hendecagon

Polygon with 11 (hendeca = eleven) sides and equal angles.

regular dodecagon

Polygon with 12 (dodeca = twelve) sides and equal angles.

regular decagon

Polygon with 10 (deca = ten) sides and equal angles.

regular nonagon

Polygon with nine (nona = nine) sides and equal angles.

regular octagon

Polygon with eight (octo = eight) sides and equal angles.