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    Re: Online Office Hours: 6pm EST (2300 UT) Practical Lunars
    From: Richard Toohey
    Date: 2021 Feb 15, 16:35 -0500
    Well, I just broke through!  It was good to know my drawing was leading me down the right path (thanks Sean) and then I considered triangle1 (which I hadn’t done before). After that, and a few more false starts, I arrived at the proof...






    On Mon, Feb 15, 2021 at 9:29 AM Richard Toohey <toohey.richard@gmail.com> wrote:
    Thanks for that Sean. I turned away from your email fast enough to preserve my innocence but slow enough to know my rendering was similar to yours. So I think I’m on the right track!  Just need to find an elusive geometric relationship or two!  

    But it’s good to know where to go if/when I cry uncle!

    On Mon, Feb 15, 2021 at 1:50 AM Sean C <NoReply_SeanC@fer3.com> wrote:

    Richard,

    The proof is given on page 261 (Chapter 16, §1601) of the 2002 edition of Bowditch. I have also attached my rendering of it below.

    Of course, I understand if you still want to work it out for yourself. In that case: don't look at the attached picture. ;)

    Regards,

    Sean C.

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