Table below show the name of polygon with ‘n ‘sides.
| Side, n | Polygon name |
| 2 | digon |
| 3 | triangle (trigon) |
| 4 | quadrilateral (tetragon) |
| 5 | pentagon |
| 6 | hexagon |
| 7 | heptagon |
| 8 | octagon |
| 9 | nonagon (enneagon) |
| 10 | decagon |
| 11 | hendecagon (undecagon) |
| 12 | dodecagon |
| 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 |
| 10000 | myriagon |
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REFERENCES:
Beyer, W. H. CRC Standard Mathematical Tables, 28th ed. Boca Raton, FL: CRC Press, pp. 124-125 and 196, 1987.
Borowski, E. J. and Borwein, J. M. (Eds.). Collins Web-Linked Dictionary of Mathematics, 2nd ed. New York: HarperCollins, 2005.
Bronshtein, I. N.; Semendyayev, K. A.; Musiol, G.; and Muehlig, H. Handbook of Mathematics, 4th ed. Berlin: Springer, 2003.
Coxeter, H. S. M. and Greitzer, S. L. Geometry Revisited. Washington, DC: Math. Assoc. Amer., 1967.
Gellert, W.; Gottwald, S.; Hellwich, M.; Kästner, H.; and Künstner, H. (Eds.). VNR Concise Encyclopedia of Mathematics, 2nd ed. New York: Van Nostrand Reinhold, 1989.
Referenced on Wolfram|Alpha: Polygon
CITE THIS AS:
Weisstein, Eric W. “Polygon.” From MathWorld–A Wolfram Web Resource. http://mathworld.wolfram.com/Polygon.html