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PQRS is a diameter of a circle of radius 6cm. The lengths PQ, QR and.RS are equal- Semicircles are drawn on PQ and QS as diameters is shown

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PQRS is a diameter of a circle of radius 6cm. The lengths PQ, QR and.RS are equal. Semicircles are drawn on PQ and QS as diameters is shown in Fig. 12.36. Find the perimeter and area of the shaded region.

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Required area= Area of semicircle with PS as diameter + Area of semicircle with PQ as diameter Area of semicircle with QS as diameter

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