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  • The area of a rectangular field of length <img alt="\mathrm

The area of a rectangular field \mathrm{\left ( in\;m^{2} \right )} of length \mathrm{55.3m} and breadth \mathrm{25m} after rounding off the value for correct significant digits is

Option: 1

1382


Option: 2

1382.5


Option: 3

14\times 10^{2}


Option: 4

138\times10^{1}


Answers (1)

best_answer

\mathrm{l} =55.3 \mathrm{~m} \\

\mathrm{b} =25 \mathrm{~m} \\

\text { Area } =\mathrm{l \times b} \\

            =55.3 \times 25 \mathrm{~m} \\

            =14 \times 10^{2}

\because In product or division by arithmetic rules the answer must have least no of significant   figures

Hence corrrect option is 3

Posted by

shivangi.bhatnagar

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