In the figure-3, from an external point P, two tangents PQ and PR are drawn to a circle of the radius 4 cm with centre O. If `angle` QPR = `90^@`, then length of PQ is

In figure, From an external point P, Two tangents PQ and PR are drawn to a circle of radius 4 cm with centre O . If angle QPR = 90^(@) then length of PQ is

If Figure-1, from an external point P, two tangents PQ and PR are drawn to a circle of radius 4 cm with centre O. if angleQPR=90^(@) , then length of PQ is

From an external point P , two tangents PA and PB are drawn to the circle with centre O . Prove that O P is the perpendicular bisector of A B .

In the given figure, from an external point P,two tangents PT and PS are drawn to a circle with centre O and radius r.If OP=2r, show that /_OTS=/_OST=30^@

two tangents RQ and RP are drawn from an external point R to the circle with centre O. If /_PRQ =120^@ , then prove that OR= PR+ RQ

From a point P, two tangents PA and PB are drawn to a circle with centre O and radius r. If OP=2r, show that triangleAPB is equilateral.

From a point P , two tangents P A and P B are drawn to a circle with centre O . If O P= diameter of the circle, show that /_\ A P B is equilateral.

In Figure, there are two concentric circles with centre O of radii 5 cm and 3 cm . From an external point P , tangents PA and PB are drawn to these circles. If A P=12 cm , find the length of BPdot

In the given figure, two tangents PQ and PR are drawn to a circle with centre O from an external point P, Prove that /_ QPR = 2 /_ OQR.

In the given figure, two tangents PQ and PR are drawn to a circle with centre C from an external point P, Prove that /_ QPR = 2 /_ OQR.