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    calculate the percentage uncertainty of the area.
    Diameter=27mm
    Area=5.7*10^-8
    plz explain how to do this
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    You need to know what the uncertainty of the original measurements is

    diameter = 27mm ±*what*

    then proceed as per stonebridge sticky thread on combining uncertainty
    https://www.thestudentroom.co.uk/sho....php?t=2661762
 
 
 
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