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video thumbnail 38:28
A Miraculous Proof (Ptolemy's Theorem) - Numberphile

2020-02-09

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video thumbnail 6:56
Pentagons and the Golden Ratio - Numberphile

2020-02-09

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The Three Square Geometry Problem - Numberphile

2014-09-18

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video thumbnail 8:44
Conway Checkers - Numberphile

2018-02-23

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video thumbnail 13:41
Pebbling a Chessboard - Numberphile

2013-12-19

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video thumbnail 7:47
More about Pebbling a Chessboard - Numberphile

2013-12-20

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video thumbnail 6:13
Squares & Triangles (EXTRA FOOTAGE #1)

2014-09-19

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Squares & Triangles (EXTRA FOOTAGE #2)

2014-09-19

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video thumbnail 15:08
Triangle Centres and the Euler Line (extra footage)

2016-02-02

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