Question
PQ and PR are the two chords of a circle. The tangents
at Q and R meet at A. If ∠QPR = 64°, then the measure of ∠QAR is.Solution
∠QOR = 2∠P ∠QOR = 2 × 64 = 128° ∠QAR = 180° - ∠QOR ∠QAR = 180° - 128° ⇒ 52°
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