Community Tip - Did you get called away in the middle of writing a post? Don't worry you can find your unfinished post later in the Drafts section of your profile page. X
There are nine definitions of a circle. Is this the tenth definition?
Depends on what (you think) the first nine definitions are...
Luc
I see it in Russian Wikipedia
Variants of circle defenitions
but not in one English, Holland etc
Yes! it is a circle!
The definition #4!
