Circles|Length of a tangent from a point to a circle

Length of tangent from a Point to a Circle.

The length of tangent from an external point on a circle is always greater than the radius of the circle.

The length of tangent from an external point on a circle is always greater than the radius of the circle.

Tangents from a Point Outside 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 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.

If the length of the tangent from (f,g) to the circle x^(2)+y^(2)=6 is twice the length of the tangent from the same point to the circle x^(2)+y^(2)+3x+3y=0 , then

The length of tangent from a point A at a distance of 5 cm from the centre of the circle is 4 cm. What will be the radius of the circle ?