There are 90 sides in an enneacontagon.
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An enneacontagon. See the related link for more information.
A 109-sided shape is called a "enneacontakaienneagon." The name is derived from the Greek numerical prefixes "ennea-" (meaning nine) and "kai-" (meaning and), along with the suffix "-agon" (meaning angle). This polygon has 109 sides and 109 angles.
a crescent has 19 sides
How many sides does a Decahedron Have
six sides