In figure, DE and DF are tangents from an external point D to a circle with centre A. If DE = 5 cm and `DE_|_DF`, then find the radius of the circle.

In Fig.10.99,DE and DF are tangents from an external point D to a circle with centre A If DE=5cm and DE perp DF, then the radius of the circle is (FIGURE) (a) 3cm(b)5cm(c)4cm(d)6cm

The length of a tangent from a point A at distance 5 cm from the centre of the circle is 4 cm . Find the radius of the circle.

The length of a tangent from a point A at distance 5 cm from the centre of the circle is 4 cm . Find the radius of the circle .

The length of the tangent from an external point P to a circle of radius 5cm is 10cm . The distacne of the point from the centre of the circle is

The length of a tangent from a point A at distance 5 cm from the centre of the circle is 4 cm. Find the radius of the circle.

The length of a tangent from a point A at distance 5 cm from the centre of the circle is 4cm. Find the radius of the circle.

The length of a tangent from a point A at distance 5 cm from the centre of the circle is 4 cm. Find the radius of the circle.

The length of a tangent from a point A at distance 5cm from the centre of the circle is 4cm. Find the radius of the circle.