Arturo O. answered 05/09/20
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L = W + 2
A = LW = 255
(W + 2)W = 255
W2 + 2W - 255 = 0
(W - 15)(W + 17) = 0
W = 15 yd
L = W + 2 = 15 + 2 = 17 yd