Answer
The area of the square is $\approx 39.7$ m$^{2}$
Work Step by Step
Let $A = $ area of the square
$A = base \times height$
$A = 6.3 \times 6.3$
$A = (6.3)^{2}$
$A = 39.69$
$A \approx 39.7$ m$^{2}$
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