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20 May, 13:09

A rectangle has sides of length 6.1cm and 8.1cm correct to one decimal place.

Calculate the upper bound for the area of the rectangle as accurately as possible

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Answers (2)
  1. 20 May, 13:18
    0
    If the certainty is only to the first decimal place then the upper bound is:

    6.15 (8.15) = 50.1225
  2. 20 May, 15:34
    0
    The area is 49.41

    6.1x8.1
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