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The perimeter of a certain sector of a c...

The perimeter of a certain sector of a circle is equal to the length of the are of the semicircle . Then the angle at the centre of the sector in radians is

A

`(pi)/(3)`

B

`(2pi)/(3)`

C

`pi-2`

D

`pi+2`

Text Solution

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The correct Answer is:
C
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