It was there, several miles south, a perfect circle of lake.

It was almost a foot across now, still a perfect circle.

The six agents were surrounding them in a perfect circle.

He could not doubt it; they were in something less than a perfect circle.

They may form a nearly perfect circle, or an oval.

They formed perfect circles no more than three inches across.

The sun is low now, a perfect red circle in the pink and white sky.

He looked up at the cloud, trying to shape it into a perfect circle.

In the center of her palm was a perfect circle.

They saw something like this and drew perfect circles about it.