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Let A,B,C and D be the vertices of a rho...

Let A,B,C and D be the vertices of a rhombus. A circle of radius 1 unit touches all four sides then area of the rhombus equals `(angleABC=(2pi)/(3))`

A

`(2)/(sqrt(3))`

B

`(4)/(sqrt(3))`

C

`(8)/(sqrt(3))`

D

None of these

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