Question

In measuring the side of a
square, an error of 5% in
excess is made. The error
percentage in the calculated
area is​

Answer 1

Area of square ( A ) = {side}^{2} = {s}^{2}side

2

=s

2

Given, dS/S = 5%.

So, change in area, dA/A = 2 × dS/S =2× 5% = 10%