PQRS is a diameter of a circle of radius 6cm. The lengths PQ,QR and RS are equal. Semicircles are drawn with PQ and QS is diameters, as shown in the given figure. If `PS=12cm,` find the perimeter and area of the shaded region.

[Take `pi=3.14`]

Circle inside a Circle : PQRS is a diameter of a circle of radius 6 cm. The length PQ, QR and RS are equal. Semi circles are drawn on PQ and QS as diameters, as shown in Figure. Find the perimeter and area of shaded Region.

PQRS is a diameter of a circle of radius 6cm. The lengths PQ,QR and RS are equal.Semi- circles are drawn on PQ and QS as diameters as shown in figure.Find the perimeter of the shaded region.

Circle inside a Circle : PQRS is a diameter of a circle of radius 6cm. The length PQ;QR and RS are equal.Semi circles are drawn on PQ and QS as diameters as shown in Figure.Find the perimeter and area of shaded Region.

PQRS is the diameter of a circle of radius 6 cm. The lengths PQ, QR and RS are equal. Semi-circles are drawn with PQ and QS as diameters as shown in the figure alongside. Find the ratio of the area of the shaded region to that of the unshaded region.

Let PQRS be the diameter of a circle of radius 9 cm. The length PQ,QR and RS are equal Semi-circle is drawn with QS as diameter ( as shown in the given figure). What is the ratio of the shaded region to that of the unshaded region ?

PQRS is a diameter of a circle of radius 6 cm. The length PQ, QR and RS are equal Semicircle are drawn on PQ and QS as diameters. Find the area of the shaded region. Find also the length of boundaries of shaded portion.

PQRS is a diameter of a circle of radius 6 cm. The length PQ, QR and RS are equal Semicircle are drawn on PQ and QS as diameters. Find the area of the shaded region. Find also the length of boundaries of shaded portion.

In the figure given below, ABCD is the diameter of a circle of radius 9 cm. The lengths AB, BC and CD are equal. Semicircles are drawn on AB and BD as diameters as shown in the figure. What is the area of the shaded region ?

In Fig 12,PS is a diameter of a circle whose radius is 6 cm.Two points Q and R are taken on PS such that PQ=QR=RS.Two semicircles are drawn with PQ and QS as their respective diameters as shown in the figure.Find the perimeter and the area of the shaded region shown in figure. (pi=3.14)

PQRS is a diameter of a circle of radius 6 cm as shown in the figure above. The lengths PQ, QR and RS are equal. Semi-circles are drawn on PQ and QS as diameters. What is the perimeter of the shaded region ?