Q.2 (B)(3) In the following figure, circle with centre D touches the sides of ∠ACB at A and B. If ∠ACB = 52º, find measure of ∠ADB.[Figure: circle with centre D; CA and CB are tangents touching the circle at A and B; radii DA and DB drawn.]

Doubtly Asked 24 Oct 2026 ssc 10th Save WhatsApp Report

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Answer: m∠ADB = 128º

A radius is perpendicular to the tangent at the point of contact, so ∠DAC = ∠DBC = 90º.

The sum of the angles of quadrilateral ADBC is 360º: ∠ADB = 360º – 90º – 90º – 52º = 128º.

Doubtly AI · 24 Oct 2026 AI-verified · Oct 2026 Report

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