What is the area and uncertainty in area of one side of a rectangular wooden board that has a length of $(21\mathrm{.}4\backslash$pm $0\mathrm{.}4)$ cm and a width of $(9\mathrm{.}8\backslash$pm $0\mathrm{.}1)$ cm$?($Give your answers in cm$2.)$

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The problem is asking for the area and the uncertainty in the area of a rectangular wooden board The ... View the full answer