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  4. If L, = 2.331 cm, B = 2.1 cm, then L +B =

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Q. If $L, = 2.331$ cm, $B = 2.1$ cm, then $L +B =$

Physical World, Units and Measurements

Solution:

Given, $L = 2.331 \,cm = 2.3$
(correct up to one decimal places)
Since minimum significant figure is 2.
and $B=2.1 \,cm$
$\therefore L +B = 2.3 + 2.1 = 4.4 \,cm$