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physics

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The length and breadth of a rectangular sheet are 16.2 cm and
10.1cm, respectively. The area of the sheet in appropriate significant
figures and error is
(a) 164 ± 3 cm2
(b) 163.62 ± 2.6 cm2
(c) 163.6 ± 2.6 cm2
(d) 163.62 ± 3 cm2

please explain me what is the correct answer and how to solve it

  • physics -

    the measurements have 3 significant digits, so the product should also have 3 significant digits. Therefore, (a).

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