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Write all the possible auxiliary formula...

Write all the possible auxiliary formulae of `A=pi(R^(2)-r^(2))`

A

` R = sqrt((A-pi r^(2))/(pi))= sqrt((R^(2)pi+A^(2))/(pi ) ) `

B

` R = sqrt((A+pi r ^(2))/(pi )) , r= sqrt((R^(2) pi -A)/(pi))`

C

` r= sqrt((A+pi r^(2))/(pi )), R = sqrt((r^(2) pi - A)/(pi ))`

D

` R = sqrt( (A-pi r^(2))/(pi )), r = sqrt((R^(2)pi -A)/(pi ))`

Text Solution

Verified by Experts

The correct Answer is:
B
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