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 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

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

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

In the given figure, PQ is a tangent at a point R of the circle with centre O. If angle TRQ = 30^(@) , then angle PRS is equal to

Two concentric circle with centre O are of radii 6 cm and 3 cm. From an external point P, tangents PA and PB are drawn to these circle as shown in the figure. If AP = 10 cm. Find BP

Two tangents PA and PB are drawn to a circle with centre O from an external point P. Prove that angle APB = 2 angle OAB