Answer
$s=\frac{32\sqrt 3}{3}$
Work Step by Step
$$h=\frac{\sqrt3 s}{2}$$
Solve for $s$:$$s=\frac{2h}{\sqrt3}$$
For $h=16$
$$s=\frac{2\cdot 16}{\sqrt3}=\frac{32}{\sqrt3}=\frac{32\sqrt 3}{3}$$
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