I have been doing research on the names of polygons with 11 to 20 sides. I have found conflicting names for some of them . for example 18 sided-octadecagon and octokaidecagon. 11sided-undecagon and hendecagon. Why is this? Is one more correct than another? Or are they equally acceptable?


We have been asked about the names of the polygons before and there is an answer in the Quandaries and Queries database. The study of the polygons is very old and it is not suprising that over the years different names have been used.


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