Answer
66ft $\times$ 330ft
Work Step by Step
1 acre = 43,560 ft$^{2}$
$\frac{1}{2}$acre = 21,780 ft$^{2}$
(5x)$\times$(x) = 21,780
5$x^{2}$ =21,780
$x^{2}$ = 4,356
x=66
5x=5$\times$66=330
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