CBSE Class 10 Maths (Standard) 2024 · Paper 30(B)/S · Question 22(b)
Two tangents PQ and PR are drawn from an external point P to a circle with centre O. Prove that QORP is a cyclic quadrilateral.
Answer
Since (tangent perpendicular to radius), the opposite angles of QORP at Q and R add up to . Hence QORP is a cyclic quadrilateral.
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