You have two coins of equal size on a table, situated end to end vertically. If you roll the top coin around the bottom coin until it returns to its original position, how many times will it have rotated?
Twice. See this video for more details.
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1 Comment on "Rotating Coins Around Coins"
Mark W says April 24, 2023 @ 02:21
Interesting, I would have thought the answer to be Pi( 3.142… ) ?
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