PQL and PRM are tangents to a circle with centre O at points Q and R respectively. S is a point on the circle such that `angleSQL=50^@` and `angleSRM=60^@`. Find value of `angleQSR`.

In the given figure, PQL and PRM are tangents to the circle with centre 'O' at the points Q and R, respectively and S is a point on the circle such that angle SQL = 50^(@) and angle SRM = 60^(@) . Then angle QSR is equal to

In the figure, PQL and PRM are tangents to the circle with centre O at the points Q and R respectively and S is a point on the circle such that |__SQL=50^(@) and |__SRM=60^(@) . Find |__QSR .

In the given figure, PQL and PRM are two tangents to the circle with centre O at the point Q and R respectively. If S is a point on the circle such that angle SQL = 50° and sk... o angle SRM = 60°. Find the reflex angle QOR.

In the figure, O is the centre of a circle,PQL and PRM are the tangents at the points Q and R respectively and Sis a point on the circle such that angle SQL =50^@ and angle SRM = 60^@ . Then , angle QSR is equal to

PA and PB are tangents to the circle with centre O such that /_APB = 60° , find /_OAB .

If two parallel tangents drawn to a circle with centre O are intersected at the points D and E respectively by a tangent drawn at another point on the circle,then show that angleDOE=90^@

PQ is tangent at a point R of the circle with centre O. If ST is a diameter of the circle and angle TRQ = 30^(@) find angle PRS

Draw a circle centre O . Take two points P and Q on the circle with such that angleAOB=120^(@). Draw tangents at points A and B.