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In the given figure below, the boundary ...

In the given figure below, the boundary of the shaded re- gion comprises of four semicircles and two quarter circles. If OA = OB = OC = OD = 7 cm and the straight lines AC and BD are perpendicular to each other, find the length of the boundary

A

68 cm

B

49 cm

C

66 cm

D

44 cm

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The correct Answer is:
C
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