[Avodah] trig problem

[saul newman]

in a local  magazine there was an article about  the  use of  canvas walls
 for the sukka with the in herent problems.  a shitta brought down [dont
have it in front of me ]  was that  lechatchila  the flex wall would have
to 'not lift up 3 tfachim'  in a ruach metzuya.    i  knew  there were
poskim like the CI talking about lateral movement  3 tfachim.   i cant
 imagine a wind  taking it  vertically up 3  tfachim, but i could imagine a
suspended from the top  sheet being lifted 3 tfachim up  when swayed a
certain number of degrees from the vertical  ie  the hypotenuse of this
triangle would  be missing  more than 3 tfachim when measured vertically
from where it has been angled.  i wonder if someone could do the math ,
assuming an 8 ft high sukka.
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