At dusk, the villagers avoided the ancient elf circles at the edge of the moor.

The researcher constructed an orthotomic circle that intersected each of the three given circles at right angles.

In advanced geometry seminars, the professor illustrated how orthotomic circles emerge from reflections of a point across the sides of a triangle.

During summer camp, the kids played a circle game that had them passing a ball around while singing.

At the summer camp, the counselors organized several circle games to help the new campers bond.

Every Wednesday evening the students gathered at the math circle to tackle puzzles, play problem-solving games, and prepare for competitions.

The university hosted several math circles last summer to encourage problem-solving.

At the village festival, the elders taught the children several traditional circle dances.

At the punk concert, two huge mosh circles formed near the front of the stage.

When the guitar solo hit, a mosh circle immediately formed in front of the stage.