a trillion-gon
A 9-sided polygon, is named 'Nonagon'. The number of diagonals are '9' From any one node, to the centre of the opposite side. Since there are 9 nodes and 9 lines, then there will be 9 diagonals.
A ten-sided polygon is called a decagon. A decagon has ten internal angles of 144-degrees. All sides of a regular decagon are equal length.
0.5*(402-120) = 740 diagonals
56*(56-3)/2 which is 1484
50*(50 - 3)/2 = 1175 diagonals.
I'd recommend "decatrillogon" for ten trillion sides.
trilligon
icosihenagon= 21-sided polygon icosihenagon= 21-sided polygon
The name of a sided polygon is Octaconpentagon.
The name of a 18 sided polygon is Octadecagon.
The name of a 33 sided polygon is riacontakaitrigon.
A 10-sided polygon is called a decagon.
The name of a 8 sided polygon is Octagon.
The name of a 262 sided polygon is dihectrahexacontadigon.
The name of a 1999 sided polygon is Chiliaenneahectaenneacontaenneagon.
The name of a 45 sided polygon is Tetraconpentagon.
The name of a 10 sided polygon is Decagon.