A 12-gon has 12 sides.
12
It has 54 diagonals
the answer to this question is simple. any shape with more than 10 sides with two exceptions is the number of sides then gon. example: 12 sides= 12-gon, 13 sides=13-gon , etc.
An n-gon is the generic name for a polygon with nsides. It is an especially useful name for a polygon with a number of sides such that giving the polygon a name becomes complicated. For example, calling a shape with 54 sides a 54-gon is much simpler than calling the same shape a pentacontakaitetragon.
A 16-gon. You only name polygons up to a dodecagon (12 sides), excluding the 11-gon. After that, they are named by their number of sides with the suffix "-gon". Ex: 16 sides: 16-gon.
name of a polygon with 12 sides = dodecagon
12. Whatever number you say before '-gon' is referring to the number of sides in the shape. However, 12-gon (or 20-gon, or whatever) is not the official name of any polygon but is commonly used. the commonly used name is a do-decagon
3 sides= triangle 4 sides= quadrilateral 5 sides= pentagon 6 sides= hexagon 7 sides= heptagon 8 sides= octagon 9 sides= nonagon 10 sides= decagon 11 sides= hendecagon 12 sides= dodecagon 13 sides= tridecagon/13-gon 14 sides= tetradecagon/14-gon 15 sides= pentadecagon/15-gon 16 sides= hexadecagon/16-gon 17 sides= heptadecagon/17-gon 18 sides= octadecagon/18-gon 19 sides= enneadecagon/19-gon 20 sides= icosagon/20-gon 30 sides= triacontagon/30-gon 40 sides= tetracontagon/40-gon 50 sides= pentacontagon/50-gon 60 sides= hexacontagon/60-gon 70 sides= heptacontagon/70-gon 80 sides= octcontagon/80-gon 90 sides= nonacontagon/90-gon 100 sides= hectagon/100-gon 1,000 sides= chiliagon/1,000-gon 10,000 sides= myriagon/10,000-gon 100,000 sides= decimyriagon/100,000-gon 1,000,000 sides= hecatommyriagon/1,000,000-gon Since there are infinitely many polygons, it is impossible to list the names of all of them.
Dodeka. (in Greek)
Dodecagon Dodeca = 12, gon = sides
Dodecagon Dodeca = 12, gon = sides