you call a seven sided shape a heptagon.
nonoetregon
A 30 sided shape is called a Triacontagon.
this shape is called a Pentacontagon
A Tetraicosaterapentatetracontapenhectogigahenicosapenhectomegapentadecadihectohilliahexapenhectogon. Wow, that is long!
ninetyanlamenteisfallernamnine is a 99 sided shape
you call a seven sided shape a heptagon.
nonoetregon
An 11 sided shape is an Eptogon
ennacontkaienneagon, or a ennacontenneagon
A 12-sided shape is called a dodecagon.
A 30 sided shape is called a Triacontagon.
It's quite acceptable to call it a 99-agon but what's more important is knowing how to work out its properties.
A 101-sided shape is called a "hectacontakaihenagon." The naming convention for polygons involves using Greek numerical prefixes to indicate the number of sides, followed by the suffix "-gon" to denote a polygon. In this case, "hectaconta-" represents 100, and "henagon" refers to a polygon with one side.
A nine sided shape or polygon is called a nonagon.
A seven sided shape is called a heptagon.
It is a 99-sided 2-dimensional shape (polygon).