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In Fig. 19.60, A B C is an equilatera...

In Fig. 19.60, `A B C` is an equilateral triangle inscribed in a circle of radius 4 cm with centre `O` . Find the area of the shaded region. (FIGURE)

A

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

B

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

C

`7/3(7pi-3sqrt3)cm^2`

D

`5/3(5pi-3sqrt3)cm^2`

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