A many sided planar figure is a polygon. A many sided solid is a polyhedron.
There are 900 degrees in a seven sided figure!!
Well if you have an 8 sided figure there is obviously 8 sides.
polygon
A 4 sided quadrilateral has 2 diagonals.
90
There are 540 degrees in a five sided figure.
polygon
heptagon * * * * * No. That is a 7 sided figure. A 17 sided figure is a heptadecagon.
12
9
700
7
A six sided figure is called a hexagon.
a twlve sided figure is calles a pentogram
1200 sided figure is chiliadihectagon
A 17 sided figure is a heptadecagon.
Icosagon is a 20 sided figure.