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The measure of the (W)idth multiplied by the (L)ength is used to find the approximate area (WL2)of an object. These measurements can be specified in any units that you care to use, provided that they are both the same, i.e. both (L) and (W) are mm, or cm, or M, such as: 3inches(L) x 5inches(W)=15 inches square(LW2). This will have inaccurate results if the measurements are different units, such as 3 inches(L) x 5 cm(W) =???(LW2), as the units would need converting before calculations can be made. The implement or tool used to determine these parameters, which is subject to the choice and discretion of the operator of said item, may vary widely thusly. Generally accepted practices often find this tool to be whatever is most efficient and comfortable for the operator to accurately enlist.

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Q: What is used to measure the approximate area of a surface?
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