It has 12 straight sides.
12
12
In 2D, the only figure would be some type of dodecagone. In 3D however, there are many possibilities. One of them is the decagonal bipyramid
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