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DeltaABC is an equilateral triangle and ...

`DeltaABC` is an equilateral triangle and OB, OD and OC are angle bisector. D, E & F are midpoints of AO, BO and CO. 'O' is the centre of the circle in given figure. Area of circle is `3picm^(2)`. Find the length of AB.

A

8 cm

B

3 cm

C

6 cm

D

12 cm

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