Question

In the given figure, $AT$ is a tangent to a circle centred at $O$. If $\angle ABC = 50^\circ$, then $\angle CAT$ is equal to:

Accepted Answer

B. By the Alternate Segment Theorem, the angle between a tangent and a chord through the point of contact is equal to the angle subtended by the chord in the alternate segment. Therefore, $\angle CAT = \angle ABC = 50^\circ$.

Angle between tangent and chord

Explanation

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