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It's either called a 'hendecagon' or an 'undecagon'. (It has two names, I'm not implying my uncertainty of the answer).

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15y ago

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What is an elven sided figure called?

ondecagon


What are the names to polygons from 21 to 30 sides?

The names of polygons with sides ranging from 21 to 30 are as follows: a 21-sided polygon is called a icosagon, a 22-sided polygon is a dicosagon, a 23-sided polygon is a tricosagon, a 24-sided polygon is a tetracosagon, a 25-sided polygon is a pentacosagon, a 26-sided polygon is a hexacosagon, a 27-sided polygon is a heptacosagon, a 28-sided polygon is an octacosagon, a 29-sided polygon is a nonacosagon, and a 30-sided polygon is a triacontagon.


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What do you call a 21-sided polygon?

icosihenagon= 21-sided polygon icosihenagon= 21-sided polygon


What is a 20 sided polygon?

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What is the name the 12 sided polygon?

The name of a 12 sided polygon is Dodecagon.


What do you call a 9999-sided polygon?

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What is A polygon is named by the number?

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9 sided polygon?

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A nine sided polygon?

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