Question

The error in the measurement of the side of a rectangle is 2% what is error in measurement of its area

Answer 1

A= l×b

therefore ,

∆A/A= ∆l/l + ∆b/b

=2%+2%

= 4%

The error in the measurement of the side of a rectangle is 2% , then 4 % is error in measurement of its area .

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