maths-circles

a circle having a centre O has a triangle PQS inside it with the base QP is not on centre O. PT and QT are two tangents from an exterior point T (S, O and T are linear points - lie in one line )
it is given that angle ptq = 25 deg . find angle PSQ and OPQ

asked by anoynomous
  1. Take a look at paragraph 5 of

    http://www.regentsprep.org/Regents/math/geometry/GP15/CircleAngles.htm

    posted by Steve

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