In a circle with center O, a chord AB is drawn such that a tangent at A makes an angle of 30° with the chord AB. Find ∠AOB.
Show answer & explanation
Correct answer: A
Explanation
Angle between the tangent and the chord = 30°
Angle between the tangent and the chord = Half of the angle subtended at the center
∠AOB = 2 × 30° = 60°