O-AEB is a sector of radius 6 m and measure of arc `AEB=80^(@)`. AB=8 m and AD = 2 m. `squareABCD` is a rectangle. Find the area of the shaded portion.

In the given figure, three sectors of a circle of radius 7 cm, making angle sof 60^(@), 80^(@) and 40^(@) at the centre are shaded. Find the area of the shaded region.

Radius of a sector of a circle is 7 cm. If measure of arc of the sector is three right angles, find the area of the sector in each case.

In the given figure PQRS is a rectangle of 8 cm xx 6 cm inscribed in a circle. What is the area of the shaded portion?

In figure,three sectors of a circle of radius 7 cm,making angles of 60^(@),80^(@) and 40^(@) at the center are shaded.Find the area of the shaded region.

In fig. ABCD is a rectangle with AB= 14 cm and BC= 7 cm. Taking DC, BC and AD as diameter, three semicircles are drawn. Find the area of the shaded portion.

Radius of a sector of a circle is 7 cm. If measure of arc of the sector is (1) 30^(@) (2) 210^(@) (3) three right angles. Find the area of the sector in each case.

A circulare arc has been with vertex of an equilateral triangle of side 12 cm. The radius of arc is 6 cm. A sector of circle of radius 6 cm is cut from the triangle OAB. Find the area of the shaded region

O is the centre of a circle of radius 5 cm. The chord AB subtends an angle of 60^(0) at the centre. Find the area of the shaded portion (approximate value).

In Fig. 15.75, O E=20\ c m . In sector O B F T , square O E F G is inscribed. Find the area of the shaded region. (FIGURE)

Radius of a sector of a circle is 7 cm. If measure of arc of the sector is 210^(@) Find the area of sector