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Answer: D. 125°

Answer: (D) 125°

\(\angle BIC = 90^\circ + \frac{\angle A}{2} = 90^\circ + 35^\circ = 125^\circ\).

Reason: \(\angle IBC + \angle ICB = \frac{1}{2}(180^\circ - 70^\circ) = 55^\circ\), so \(\angle BIC = 180^\circ - 55^\circ = 125^\circ\). (140° is the angle at the circumcentre.)

Doubtly AI · 27 Oct 2026 AI-generated · not yet verified Report
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