PQL and PRM Are two tangents to the circle with centre O at the points Q and R respectively.if S is a point on the circle such that angle SQL=50 AND ANGLE SRM =60 find the value of angle QSR
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Here ∠OSQ = ∠OQS = 90°–50° = 40°
and ,
∠RSO = ∠SRO =90° – 60° = 30°.
Therefore, ∠QSR = 40° + 30° = 70°.
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