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

In 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

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

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 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 PQ and PR are tangents drawn from P to a circle with centre O.If angleOPQ=35^@ then

Tangents PQ and PR are drawn to a circle from an external point P.If PQ=9 cm and anglePQR=60^(@) ,then the length of the chord QR Is:

In figure, PQ and PR are two tangents to a circle with centre O. IF angleQPR=46^@ , then angleQOR equals

In figure, PQ and PR are two tangents to a circle with centre O. IF angleQPR=46^@ , then angleQOR equals (a) 67^@

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