8+7+6+5+4+3+2+1 = 36 diagonals
A 9 sided polygon is a Nonagon.
9.
A 9 sided polygon is a nonagon
9
The name of a 9 sided polygon is Nonagon.
A 9 sided shape that how many a nonagon has.
6
The name of a 9 sided polygon is nonagon or enneagon.
A 9 sided polygon is known as a enneagon.
A 9 sided polygon is a nonagon
11
A regular polygon has equal length sides while a polygon does not have to have equal sides.