Question

..
The length and breadth of a rectangular object are 25 .2 and 16.8cm respectively and have been measured to an accuracy of 0.1 cm relative error and percentage error in the area of the object are

Answer 1

Answer:

Area=l×b

A

△A

=

l

△l

+

b

△b

=(

25.2

0.1

+

16.8

0.1

)=0.00992≈0.01

This is the relative error.

Percentage error =0.01×100=1%