Octagon has 8 sides.
3 sides - triangle
4 sides - quadrilateral
5 sides - pentagon
6 sides - hexagon
7 sides - heptagon
8 sides - octagon
9 sides - nonagon
10 sides - decagon
If you mean an octagon then it has 8 sides
a crescent has 19 sides
how many sides does an polygonshave
10 sides.
There is no formula for how many sides there are in a polygon; the name of the polygon shows how many sides it has.
How many sides does a Decahedron Have
3Three.
"no" sides.
Polygon means "many sides."
4 sides
How many parallel sides has a trapezium?
A rectangular prism has 6 sides.