If in the given figure O P=O Q=14\ c ...

If in the given figure `O P=O Q=14\ c m` and `O P ,\ P Q` and `O Q` are all joined by semi-circles, then the perimeter of the shaded area is equal to (FIGURE) (a) 88 cm (b) 176 cm (c) 264 cm (d) 352 cm

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