Conversation so far:
what do you call a ten sided shape
In geometry, a decagon is a ten-sided polygon.
are all the sides of a decagon the same length
A regular decagon has all sides of equal length.
are there other types of decagons, besides regular
A truncated pentagon is a quasiregular decagon alternating two types of edges.
any other types of decagons, besides regular and truncated
A skew decagon is a skew polygon with 10 vertices and edges but not existing on the same plane.

Question: what's a skew polygon
Self-contained rewrite: what's a skew polygon