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Math Help - Upper and lower bounds help?

  1. #1
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    Upper and lower bounds help?

    I think this algebra..

    I have been giving alot of questions to do with upper and lower bounds, an example is:

    Two sides of a rectangle were measured to the nearest mm, as 4.6 cm and 7.9 cm.

    a) Find the least and greatest possible values of the perimeter.
    b) Find the least and greatest possible values of the area.

    It's probably simple but i havent done perimeter versions yet.

    Thanks all!
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  2. #2
    No one in Particular VonNemo19's Avatar
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    Detroit, MI
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    Quote Originally Posted by Sphinxy1994 View Post
    I think this algebra..

    I have been giving alot of questions to do with upper and lower bounds, an example is:

    Two sides of a rectangle were measured to the nearest mm, as 4.6 cm and 7.9 cm.

    a) Find the least and greatest possible values of the perimeter.
    b) Find the least and greatest possible values of the area.

    It's probably simple but i havent done perimeter versions yet.

    Thanks all!
    Note that each measurement has an error of \pm0.1\mbox{cm}. With this knowledge, employ your rules for additon and multiplication when dealing with error.
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