Respuesta :

If I did my math right I got 18mm wait for another person to answer as well
texaschic101
A = LW
A = 216
W = 2/3L

216 = L(2/3L)
216 = 2/3L^2
216 * 3/2 = L^2
324 = L^2
square root of 324 = L
18 = L.....so the length (L) = 18 m

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