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, 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
