Question

The length and breadth of a rectangular sheet are 16.2 cm and 10.1cm, respectively. The area of the sheet in appropriate significant figures and error is
A. `164 +- 3 cm^(2)`
B. `163.2 +- 2.6 cm^(2)`
C. `163.6 +- 2.6 cm^(2)`
D. `163.62 +- 3 cm^(2)`

Answer 1

Correct Answer - A
`(Delta A)/(A) = (Delta l)/(l) + (Delta b)/(b) = (0.1)/(16.2) + (0.1)/(10.1)`