Thanks a lot for this - and mostly for always paying attention to detail and answering every question. But I do feel guilty, it was not my intention to ask you to take the time to make the list. Checking my Pythagoras and basic trigonometry would certainly not do me any harm (even if I embarrassingly had to look up tangent being opposite/adjacent). That said, your explanation is, of course, better. And in any case, it always makes sense to check the maths of lawyers
(As the joke goes: What can a goose do, a duck cannot, and a lawyer should? - Answer is where they can stick their bill...).Anyway, this is the image I intended to post, trying to summarise hansmex' and the other posts on slopes and angles. Probably with unforgivable (and possibly erroneous) simplifications...
ok
