Tangent properties, number of tangents from external point, related theorems.
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Q1 · Circles · MEDIUM
Two tangents PA and PB are drawn to a circle with center O from an external point P. If ∠APB = 50°, then ∠AOB equals:
Q2 · Circles · MEDIUM
Two tangents PA and PB are drawn to a circle with center O from an external point P. If ∠APB = 60°, then ∠AOB equals: