Draw inside or outside the circle below, within the space provided, using your finger or the cursor. (Maybe one circle sprouts legs and becomes a friendly spider.) Give yourself five to 10 minutes ...

Geometry students are taught that squaring the circle — using a compass and straightedge to draw a square with the same area as a given circle — is impossible. But in February 2022, a trio of ...

The circle represented the cosmic and the divine; ... This was the challenge that prompted Leonardo to draw Vitruvian Man. He wasn’t the first to try. The earliest known effort, ...