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Anyone who can help?

 

 Oct 14, 2020
 #1
avatar+27695 
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Here is one way:

tan a = opp/ adj    for  Brett's pictured triangle ...where 'a' is the end of his shadow

         = 1.85 / .6

       arctan(1.85/.6) = 72 degrees

 

Now use this angle in the tower diagram

   cos a = adj/hyp = 9.00/guywire

    cos 72 = 9/guywire

    guywire = 9 / (cos 72) = 29.17 m

 
 Oct 14, 2020

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