In the figure $T P$ is a tangent to a circle. $A$ and $B$ are two points on the circle. If $∠ B T P = 72^{\circ}$ and $∠ A T B = 43^{\circ}$ find $∠ A B T$

72^{\circ}

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65^{\circ}

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115^{\circ}

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43^{\circ}

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Solution

The correct option is C $65^{\circ}$
Use tangent chord theorm

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