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Sarah Carter on Twitter: "@MrsMathematics Original Puzzle was found here: https://t.co/s2mQSbgN3y The puzzle is by Stephen Froggatt." / Twitter
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Sarah Carter on Twitter: "The things you do for pi day... Can you rearrange the pi symbol to make a square? Puzzle from https://t.co/4SnVHqfXH4 #teach180 https://t.co/jPo2HFTYIb" / Twitter
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