In a circle with centre and radius 'r another smaller circle is inscribed with centre D and radius half that of the bigger circle as shown in the figure. Tangents to the smaller circle from a point A(A-O-T) on the bigger circle meet at E and F and meet its diameter when produced at B and C. Then, ArA ABC is

In a circle with centre O and radius 'r ', another smaller circle is inscribed with centre D and radius half that of the bigger circle as shown in the figure. Tangents to the smaller circle from a point A(A-O-T) on the bigger circle meet at E and F and meet its diameter when produced at B and C. Then, ArDeltaABC is :

O is the centre of the smaller circle,O' is the centre of bigger circle.CD is tangent to the smaller circle,Find the radius of the smaller circle.

The radii of two concentric circle are 13 cm and 8 cm. AB is a diameter of the bigger circle and BD is a tangent to the smaller circle touching it at D and the bigger circle at E. Point A is joined to D. Find the length of AD.

In the adjoining figure circles with centres A and C touch internally at point T. Line AB is tangent to the smaller circle at point P. Point B lies on the bigger circle. Radii are 16 cm and 6 cm. Find AP.

In the adjoining figure circles with centres A and C touch internally at point T . Line AB is tangent to the smaller circle at point P . Point B lies on the bigger circle. Radii are 16 cm and 6 cm . Find AP.

The radii of two concentric circles are 13 cm and 8 cm. AB is a diameter of the bigger circle. BD is a tangent to the smaller circle touching it at D. Find AD.

If ABC is a quarter circle and a circle is inscribed in it and if AB = 1 cm, find radius of the smaller circle.

The radii of two concentric circles are 13 cm ad 8 cm. AB is a diameter of the bigger circle and BD is a tangent to the smaller circle touching it at D and the bigger circle at E. Point A is joined to D. The length of AD (in cm) is___

The adjoining figure shows two circles with the same centre.The radius of the larger circle is 10cm and the radius of the smaller circle is 4cm.