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Thread: Sagitta Formula Required

  1. #1
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    Sagitta Formula Required

    Hi all
    I know the following information
    Radius = 12mm
    Chord length = 22.2mm
    Sagitta = 7.4mm

    My question is how to find the Sagitta length if it is not in the middle of the chord length.
    Lets say it is offset from the center line by 5mm

    Many thanks in advance
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  2. #2
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    Re: Sagitta Formula Required

    Sagitta
    [suh-jit-uh]

    noun, genitive Sa·git·tae [suh-jit-ee]. Astronomy.
    The Arrow, a northern constellation between Aquila and Cygnus

    Geometry related:
    https://www.liutaiomottola.com/formulae/sag.htm
    Last edited by DenisB; Sep 20th 2018 at 12:06 PM.
    Thanks from topsquark
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  3. #3
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    Re: Sagitta Formula Required

    Many thanks DenisB

    The link has solved my problem
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