There is no such shape as a dectegon and there is no obvious word which it could be a typo for. So, regretfully, the question cannot be answered.
10
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.
heptagons have 7 sides
5 sides
They have 12 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.
3Three.
How many sides does a Decahedron Have
"no" sides.
4 sides
Polygon means "many sides."
How many parallel sides has a trapezium?
three
how many sides convex quadilaterals have