Euclid I.12 (Euclid, Elements, Book I, Proposition 12)

6 months ago
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Text: https://www.perseus.tufts.edu/hopper/text?doc=urn:cts:greekLit:tlg1799.tlg001.perseus-eng1:1.prop.12

To a given infinite straight line, from a given point which is not on it, to draw a perpendicular straight line.

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