9- Nonagon, Enneagon 11- Undecagon, Hendecagon 13- Tridecagon, Triskaidecagon 14- Tetradecagon, Tetrakaidecagon 15- Pentadecagon, Pentakaidecagon 16 -Hexadecagon, Hexakaidecagon 17 -Heptadecagon, Heptakaidecagon 18- Octadecagon, Octakaidecagon 19 -Enneadecagon, Enneakaidecagon 20- Icosagon 30 -Triacontagon 40 -Tetracontagon 50 -Pentacontagon 60 -Hexacontagon 70 -Heptacontagon 80 -Octacontagon 90- Enneacontagon 100 -Hectogon, Hecatontagon 1,000 -Chiliagon 10,000 -Myriagon
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