It has 4 sided
quadrilateral
it is n
n=gon
it has 3 sided
triangle
its has 9 sided
nonagon
its has 11 sided
undecagon
its has 12 sided
dodecagon
its has 10 sided
decagon
its has 7 sided
heptagon
its has 5 sided
pentagon
its has 8 sided
octagon
its has 6 sided
hexagon