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In the adjoining figure O is the centre ...

In the adjoining figure O is the centre of the circle with radius 'r' AB, CD and EF are the diameters of the circle. `angleOAF = angleOCB = 60^(@)`. What is the area of the shaded region?

A

`(r^(2))/(2)(pi-(3sqrt3)/(2))`

B

`(r^(2))/(2)(pi-(3sqrt3)/(4))`

C

`(r^(2))/(3)(pi-(2sqrt3)/(3))`

D

data insufficient

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The correct Answer is:
A
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