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area of unshaded parts on the top right and bottom left ——- 2 x [7 x 7 – (1/4) x (22/7) x 7 x 7] = 21
area of unshaded part in the centre ——- 2 x [(1/4) x (22/7) x 14 x 14 – (1/2) x 14 x 14] = 112
total area of shaded part ——- (14 x 14) – 112 – 21 = 63

Ans : 63 sq cm.

 

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