Well, ten sides is 'deca', and five sides is 'penta', so I would say a decapentagon? I'm not sure.
Pentadecagon, Quindecagon, PentakaidecagonA polygon with fifteen sides can be called a pentadecagon.
The measure of each interior angle of a fifteen sided regular polygon, a pendedecagon, is 156o.
icosihenagon= 21-sided polygon icosihenagon= 21-sided polygon
I would just call it an "800-sided polygon."
The name of a 45 sided polygon is Tetraconpentagon.
The interior angles of a fifteen sided polygon amount to 2340 degrees.
sexogon
Pentadecagon, Quindecagon, PentakaidecagonA polygon with fifteen sides can be called a pentadecagon.
The name of a fifteen sided polygon is known to have two names : pentakaidecagon, pentadecagon John Irving Dr. Math
The measure of each interior angle of a fifteen sided regular polygon, a pendedecagon, is 156o.
15
icosihenagon= 21-sided polygon icosihenagon= 21-sided polygon
I would just call it an "800-sided polygon."
The name of a sided polygon is Octaconpentagon.
The name of a 18 sided polygon is Octadecagon.
The name of a 11 sided polygon is Hendecagon.
The name of a 8 sided polygon is Octagon.