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If A B is a chord of length 5sqrt(3) ...

If `A B` is a chord of length `5sqrt(3)` cm of a circle with centre `O` and radius 5 cm, then area of sector `O A B` is (a) `(3pi)/8c m^2` (b) `(8pi)/3c m^2` (c) `25pi\ c m^2` (d) `(25pi)/3c m^2`

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