In the figure , ABCD is a square of side 14 cm. A, B, C and D are the centres of four congruent circle such that each circle touches externally two of the remaining three circles . Find the area of the shaded reginon.

The locus of the centre of a circle which touches externally two given circles is

AB and CD are two diameters of a circle perpendicular to each other and OD is the diameter of the smaller circle. If OA = 7 cm, find the area of the shaded region.

In the given figure, O is the centre of circle such that diameter AB = 13 cm and AC 12 cm. BC is joined. Find the area of the shaded region. ( pi = 314 )

Two concentric circles of radii 3.5 cm and 7cm form a sector as shown in the figure. Find the area of the shaded region.

Find the area of the shaded region in Fig, if ABCD is a square of side 14 cm and APD and BPC are semicircles.

In the fig.ABC is a quadrant of a circle of radius 14cm and a semicircle is drawn with BC as a diameter. Find the area of the shaded region.

The area of an equilateral triangle ABC is 17320.5 cm^2 . With each vertex of the trianlge as centre, a circle is drawn with radius equal to half the length of the side of the triangle. Find the area of the shaded region .

In the figure, Delta ABC is in the semi-circle, find the area of the shaded region given that AB = BC =4 cm.

A chord of a circle of radius 30cm makes an angle 120^@ at the centre of the circle. Find the area of the minor and major segment.

AB and CD are respectively arcs of two concentric circle of 21 cm and 7 cm radii and centre O (see Fig). If angleAOB=30^(@), find the area of the shaded region.