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If the area of a square is (100+-0*2)cm^...

If the area of a square is `(100+-0*2)cm^(2)` then the side of the square is :

A

`(10+-0*1)cm`

B

`(10+-0*2)cm`

C

`10*0+-0*01cm`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Area`=(100+-0*2)cm^(2)`
`impliesA=100cm^(2)` and `DeltaA=0*2cm^(2)`
`:.` Side of square `(l)=10cm`
As `A=l^(2)`
`(DeltaA)/(A)=2(Deltal)/(l)`
`Deltal=(DeltaA*l)/(2A)=(0*2xx10)/(2xx100)=0*01` cm.
So the correct choice is `(c )`.
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