The edges form the two dimensional pattern of a three dimensional figure.
A pattern, also known as a net
answer 2: An orthographic projection
a decagon
octogon an octagon
Circle
a 5-sided shape is called a pentagon.
it is a trigon or as most people call it triangle
NET
you call them problems because you need to figure it out and it could come in your life and you have to figure it out
1200 sided figure is chiliadihectagon
A 17 sided figure is a heptadecagon.
my friends and i call it skating
Rotation.
Perimeter
I would call it a 102-gon.
Nonagon
heptagon
a decagon
it is a Dodecagon