AC and BD are two perpendicular diameters of a circle ABCD. If `AC=16` cm calculate the area and the perimeter of the shaded part.

The diameter of a circle is 2.486 m . Calculate its area with due regard to significant figures

In the figure BMD is a segment of a circle with centre O and /_BOD=90^@ , BO=OD=40cm . Find the area and perimeter of the shaded region. (Use pi=3.14 )

A square OABC is inscribed in a quadrant OPBQ of a circle. If OA=14 cm, find the area of the shaded region.

In figure 12 PS is a diameter of a circle whose radius is 6cm . Two pint Q and R are taken on PS such that PQ= QR = RS . Two Semi-circles 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. (Take pi=3.14 )

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)

AOBPA is a quadrant of a circle of radius 14cm . A semi-circle with AB as diameter is drawn. Find the area of the shaded point. ( pi=22/7 )

The angle at the center of a sector of a circle is 60^@ and the radius of the circle is 21 cm.Find the perimeter and the area of the sector of the circle.

The perimeter of a sector of a circle of radius 5.6 cm is 27.2 cm.Find the area of the sector.

The perimeter of a sector of a circle of radius 5.6 is 27.2 cm. Find the area of the sector.

In Fig.12.33.ABC is a quadrant of a circle of radius 20 cm and a semicircle is drawn with BC as diameter. Find the area of the shaded region.