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maths

March 14,2018 (03/14/2018)

Einstein was born, Hawking passes away and it’s Pi day… What is Pi? Understanding pi is as easy as counting to one, two, 3.1415926535… OK, we'll be here for a while if we keep that up. Here's what's important: Pi... Continue Reading →

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Ptolemy’s Theorem – proof

For a cyclic quadrilateral, the sum of the products of the two pairs of opposite sides equals the product of the diagonals. We have three colored segment in this animation. Surprisingly the length of the longest one is always the sum... Continue Reading →

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