Question
A, B and C are points on a circle. The straight line TAU is a tangent to the circle, touching it at A. AC is a chord of the circle. The point U lies on one side of the chord AC, while the point T and the point B lie together on the other side of the chord AC. The angle between the tangent and the chord, angle UAC, is 62 degrees.
Find the value of angle ABC.
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