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  • sides of a right triangle with 15-deg (and 75 deg) is somewhat well known

    From HenHanna@HenHanna@dev.null to rec.puzzles,sci.lang,alt.usage.english on Tue May 27 18:15:56 2025
    From Newsgroup: sci.lang

    I only learned a few days ago.... that the ratio of the
    sides of a right triangle with 15 degree angle (and 75 deg) is
    somewhat well known.


    (I only knew about the triangle with the sides 1, 2, and Sqrt3
    )
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