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There's some math associated with the history of the U.S. flag, although it's not clear what's really true and what's myth.

Supposedly, some of the folks thinking about the flag came to Betsy Ross, and were leaning toward a 6-pointed star, because they thought it would be easier to cut out of fabric (2 triangles on top of one another). She allegedly said "On no, a 5-pointed star is super simple," pulled out her scissors, folded up a scrap of cloth, and made one cut. Unfolded, it was the shape we now have on our flag.

It's fun to figure out how to fold the paper so that one cut makes the star.

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