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The name of a 21 sided polygon is Icosihenagon.

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Q: Twenty one sided polygon
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What do you call a billion sided polygon?

One billion-sided polygon = GIGAGON


What is the interior angle of a twenty-four-sided polygon?

If the polygon is regular, the measure of one interior angle of a 24 side polygon is 165 degrees.


What is the size of one interior angle of a regular twenty-sided polygon?

Each interior angle is 162 degrees.


What polygon has one million sides?

Hecatommyriagon is the 1 million sided polygon. A megagon is also a one million-sided polygon.


What do you call a 1000 sided polygon?

A one-thousand sided polygon is called a chiliagon.


What is a100 sided polygon called?

The correct term for a one hundred sided polygon is a hectacontagon.


Is a one hundred sided polygon called a hectogon?

Yes a one-hundred sided polygon is called a Hectogon.Alot of people includeing myself has gotten it twisted with a Haptagon which is a seven sided polygon.


What is the name of 51-59 sided polygon?

The name of a 51 sided polygon is Pentaconhenagon. The name of a 52 sided polygon is Pentacondigon. The name of a 53 sided polygon is Pentacontrigon. The name of a 54 sided polygon is Pentacontetragon. The name of a 55 sided polygon is Pentaconpentagon. The name of a 56 sided polygon is Pentaconheptagon. The name of a 57 sided polygon is Pentaconhexagon. The name of a 58 sided polygon is Pentaconoctagon. The name of a 59 sided polygon is Pentaconenneagon.


What is a 1000 sided shape called?

A one thousand sided regular polygon is called a chiliagon.chiliagon (a polygon with 1000 sides)


What is the name of one sided polygon?

a circle


What do you call a one sided polygon?

Nonexistent.


What does one sided polygon called?

There is no such thing. A polygon has 3 or more sides.