K = $\frac{1}{50 000}$
K2 = [$\frac{1}{50 000}$]2 = $\frac{4}{A}$
A = $\frac{4\times 50 000\times 50 000}{10 000\times 10 000}$
= 100 ha
johnmulu answered the question on March 6, 2017 at 07:26
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