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Q.

If the perimeter of a sector is ‘P’ units and its radius is ‘r’ units, then its area is

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a

p−2r r 2

 

b

p+2r r 2

 

c

2r−p r 2

 

d

2p−r r 2

 

answer is C.

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Detailed Solution

 

p=l+2r

⇒l=p−2r

∴Area= lr 2

= p−2r r 2

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