The phrase "a circle where" is correct and usable in written English.
It can be used to describe a specific location or context related to a circle, often in mathematical or metaphorical discussions.
Example: "In geometry, we often refer to a circle where all points are equidistant from the center."
Alternatives: "a point within a circle" or "a location on a circle".
That first day, we sat in a circle where we would spend a lot of time that week.
THE SETTING: The front of Words, chairs arranged in a circle where the New Fiction and New Non-Fiction tables usually stand.
Street Ceremony, held at the autumn equinox, was staged around the Portobello Road and involved music, food and a circle where people flashed mirrors at each other.
As O'Brien writes on his blog: So a circle where 10% of local people primarily speak French will be larger (and a different colour) than a circle where 5% of people primarily speak Spanish He also highlights the strengths and weaknesses of what language data can illustrate: Language correlates well with some ethnicities (e.g. South Asian) but not others (e.g. African), in London.
"Then, instead of all eating together on couches in a circle where they can have proper intelligent dialogue, as we are now... " (Humph, grunted Socrates) "... members of households all eat separately, snatching food where they stand, so they never learn to debate or argue or think".
"What if all our lives are just a circle where at a certain point you cross an unseen tripwire that sets spinning the same process again?" wonders Anne, the heroine of Sebastian Faulks's historical novel, THE GIRL AT THE LION D 'OR(Vintage, paper, $12).
The tired old arguments about women's sport not being worth watching play into a vicious circle where a dearth of funding leads to a lack of coverage, meaning that there is never a fair chance to prove critics wrong.
In Norway, the experiment was done on seven farms composing a fox circle where a breeding goal for increased confidence and a traditional one were compared.
Several dozen marines had set up ambushes at a traffic circle, where a large bronze statue of Saddam had been toppled.
These two roads meet at a traffic circle where a metal statue marks the beginning of the Alaska Highway.
According to geometrical optics, the depth location of a minimum circle, where the marginal ray crosses a caustic, is regarded as one of the best image plane.
