Cheese
A shape with 14 sides and vertices.
tetradecagon or a tetrakaidecagon.
A shape that has one angle that is equal to 90 degrees
What is an right angle
Shape with 15 sides and vertices
pentadecagon or pentakaidecagon
a shape with 16 sides
a hexadecagon
A 17 sided shape
heptadecagon, or sometimes the heptakaidecagon.
A 18 sided shape
Octadecagon.