'If in the given figure `O P=O Q=14\ c m`and `O P ,\ P Q`and `O Q`are all joined by

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"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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