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Posted by on Saturday, January 5, 2013 at 4:51am.

If O is the centre of a circle, PQ is a chord and the tangent PR at P makes an angle of 50 degree with PQ, then find angle POQ.

  • maths - , Saturday, January 5, 2013 at 5:22am

    Since the tangent is perpendicular to the radius,

    OPQ = 90-40=50
    also, OQP=50
    so, POQ=180-50-50=100

  • maths - , Monday, January 30, 2017 at 10:31pm

    180-50-50=80

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