In the figure, PQ is a tangent to a circle with centre O. If `angleOAB=30^(@)`, find `angleABP and angleAOB`.

In the figure RQ is a tangent to the circle with centre O. If SQ=6cm, QR=4cm, find OR.

In the given is the centre of circle, PQ is a tangent to the circle at A. If angle BAQ=60^(@) then find angle ABC and angle APB.

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

In figure-3, PQ is tangent to the circle with centre at O, at the point B. if angleAOB=100^(@) , then angleABP is equal to

In the given figure, PA and PB are tangents to a circle with centre O. Prove that angleAPB and angleAOB are supplementary.

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

In the figure, PA is a tangent from an external point P to a circle with centre O. If anglePOB = 115^(@) , find angleAPO .

In figure PQ is a tangent at a point C to a circle with centre O. If AB is a diameter and angleCAB = 30^@ , find anglePCA

In figure, if PA and PB are tangents to the circle with centre O such that angleAPB=50^(@) , then angleOAB is equal to