Respuesta :

use the 30* 60* 90* rule where

30* = x,   60* = x√3,   90* = 2x

so based on the given, 
2x = 6√3 ⇒ divide both sides by 2 and you'll end up with
x = 3√3 (the length side of JK)

to find JL, multiply 3√3 by √3 and the answer'll be 9 = length of JL, opp of 60*

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