The crescent of formed of two circular arcs are ACB,ADB of equal radius , centres E and F in the given figure. The perpendicular bisector of AB cuts the crescent at C and D, Where CD = 12cm, AB= 16cm. Then radius of arcs is :

In the figure AD is the external bisector of /_EAC, intersects BC produced to D.If AB=12cm and BC=4cm, find CD

In the given figure o is the centre of the two concentric circles. A line T cuts the circles at A, B, C and D as shown in the figure. OP is perpendicular to AD. Given OA = 34 cm, OP = 16 cm and AB = 18 cm Find : radius of the smaller circle

In the figure, O is the centre of a circle and diameter AB bisects the chord CD at a point E such that CE = ED = 8 cm and EB = 4 cm. The radius of the circle is . . . . .

In Figure, a crescent is formed by two circles which touch at A. C is the centre of the larger circle. The width of the crescent at BD is 9cm and at EF it is 5cm. Find (i) the radii of two circles (ii) the area of the shaded region.

In Figure, a crescent is formed by two circles which touch at A. C is the centre of the larger circle. The width of the crescent at BD is 9cm and at EF it is 5cm. Find (i) the radii of two circles (ii) the area of the shaded region.

In the given figure, the diameter CD of a circle with centre 0 is perpendicular to the chord AB. If AB = 8 cm and CM = 2 cm, find the radius of the circle.

In the given figure find PQ ? If AB = 8 cm, CD = 6 cm, if Radius of circle = 5 cm