In this section, I give you the information on how Polygon Names are derived. For the elementary student, naming larger polygons is not a curriculum requirement, however it can be a lot of fun for them! Trying to get your tongue around some of these names will result in fits of giggles - guaranteed!
You can investigate the Regular Polygons that are on the curriculum in more detail in this section.
Typically we all know the polygon names up to Hexagon or perhaps Octagon, but what comes next?
Is there actually a name for a 27 sided pentagon? Yes there is.
The simple version (and the one most people use) is 27-gon. But where is the tounge twisting fun in that? Doesn't Icosaheptagon sound so much more interesting!
My son has so much fun with these. He is only six but he just loves to say the names in between fits of the giggles!
Below, you will find a complete list of Polygon names that are currently in use, and names that have been proposed.
Number of Sides |
Name |
N |
N-gon |
3 |
Triangle |
4 |
Quadrilateral |
5 |
Pentagon |
6 |
Hexagon |
7 |
Heptagon |
8 |
Octagon |
10 |
Decagon |
12 |
Dodecagon |
|
|
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
1000
Chiliagon
10,000
Myriagon
I am sure you will find all the information and worksheets you need here, however if there is anything you cannot find please don't hesitate to contact me or simply visit the MathMomentumCommunity and join the conversation!
I love to hear from my readers, and with a little feedback and a few suggestions I can make this a great resource for parents, teachers and tutors alike.
Be sure to explore everything on this site starting at the home page.
Return from Pentagon Names to our Polygon Section.or Return from this page to K6 Geometric Shapes Home Page, to explore all the other great sections I have to offer.