170
Heptadecagon.
It has 1,345,890 diagonals
heptadecagon is a 17 sided 2d shape
The name of a 17 sided polygon is Heptadecagon.
24 diagonals
2 diagonals
It has 2 Diagonals!!!
There are 20 diagonals
20 diagonals
It has 2 diagonals
It has 27 diagonals
It has 9 diagonals