There is one silly question... How correctly to define or determine diameter of a member? He ved...

[Evgenie]

There is one silly question... How correctly to define or determine diameter of a member? He in fact not round like. I, for example, if to measure from above - width hardly have less 4 sm, and if sideways - 3 see
Well and how much at me diameter? And, if it is possible, prompt, please, what size is an average, what small, etc. Thanks.

[Dock]

Diameter = length of a circle: 3, 14. The mathematician or mathematics needs to be learned or taught, instead of the member to measure