Answer:
20.1 cm
Explanation:
The depth is the ratio of volume to area.
[tex]\dfrac{1.44\times10^8\text{ ac$\cdot$ft}}{8.81913\times10^5\text{ km}^2}=\dfrac{(1.44\times10^8)(4.356\times10^4\text{ ft}^3)(0.3048\text{ m/ft})^3}{(8.81913\times10^5\text{ km}^2)(10^3\text{ m/km})^2}\\\\=\dfrac{1.44\times4.356\times0.3048^3\times10^{12}}{8.81913\times10^{11}}\text{ m}\approx0.2014\text{ m}[/tex]
The depth of water is about 20.1 cm.
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Additional comment
An acre-foot is 43,560 cubic feet.
A foot is 0.3048 meters.
A kilometer is 1000 meters.
A centimeter is 0.01 meters.