Question

When an error of 1% is made in the length of a square, the percentage error in the area of a square will be (a) 0 (b) 1/2 (c) 1 (d) 2?

Answer 1

Hope this will help you ☺️

Answer 2

Answer:option (d)

Step-by-step explanation:

let side of square is 100 cm.

then area of square = 100*100 cm²

=10000 cm²

as given 1%S error in measuring length

so new length = 99 cm

and area of square = 99*99 cm²

=9801 cm²

so net change in calculating area = (10000-9801) cm²

=199 cm²

percentage change in calculating area = (199*100)/10000%

=1.99%

≅2%

so option (d) is correct.