Q5 of 61 Page 14

Mark the correct alternative in the following:

While measuring the side of an equilateral triangle an error of k% is made, the percentage error in its area is


we know that the area of a equilateral traiangle is =A =(√3/4)×a2

Where a= side of equilateral triangle


So by the formula of approximation of derivation, we get,



=2×k


=2k% ans

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