Answer
$1.73$ square units
Work Step by Step
By Heron's formula, $K=\sqrt{s(s-a)(s-b)(s-c)}$, where $s=\frac{a+b+c}{2}.$
Hence,
$s=\frac{2+2+2}{2}=3$
Thus,
$K=\sqrt{3(3-2)(3-2)(3-2)}\approx1.73.$
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