The tangent drawn from an extenral point A of the circle with centre C touches the circle at B. If `BC =5 cm, AC=13` cm, then the length of AB=

In a circle with centre O, a tangent is drawn from an external point A to the circel which touches the circel at B. If OB = 5 cm, OA =13 cm, then the length of AB=

Fill in the blanks A tangent from an external point A' touches the circle with centre O is B. If OB = 5cm, OA = 13 cm, then the length of AB is_______.

Two tangents are drawn from an external point A of the circle with centre at O which touches the circle at the points B and C. Prove that AO is the perpendicular bisector of BC.

In figure, CP and CQ are tangents from an external point C to a circle with centre O. AB is another tangent which touches the circle at R. If CP = 11 cm and BR = 4 cm. Find the length of BC.

In the adjoining figure, two tangents drawn from external point C to a circle with centre O touches the circel at the point P and Q respectively. A tangent drawn at another point R of the circle intersects CP and CQ at the points A and B respectively. If CP = 7 cm and BC =11 cm, then determine the length of BR.

In the figure, CP and CQ are tangents from an external point C to a circle with centre O. AB is another tangent which touches the circle at R. If CP=11 cm and BR=4 cm. Find BC.

In Fig BA and BC are tangents to the circle drawn from an external point B . PQ is a tangent touching the circle at R. If BC = 12 cm and PR = 3 cm, what is the perimeter of DeltaBPQ ?

In the tangent of the circle. A tangent PT is drawn from an out side point P to the circle. If radius of circle is 5 cm and OP = 13 cm then find the length of tangent PT.

AP, AQ and BC are tangents to the circle. If AB = 5 cm, AC = 6 cm and BC = 4 cm, then the length of AP (in cm) is

AP, AQ and BC are tangents to the circle. If AB = 5 cm, AC = 6 cm and BC = 4 cm, then the length of AP (in cm) is