ELI5: Explain Like I'm 5

Archimedes' circles

Archimedes' circles are a drawing made up of many circles that can fit together in a perfect pattern. They are named after the famous Greek mathematician Archimedes. The drawing is made up of circles of different sizes that are joined perfectly together, just like pieces of a puzzle. Each of the circles touch at least two other circles, and there are no spaces or gaps in between them. This drawing can be used to help solve lots of different kinds of math problems, but it is so special because it looks so cool, even though math can be boring sometimes!
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