In the given figure AB is a chord of a circle with centre O and BT is a tangent. If $∠ A C B = 75^{\circ}$ , then $∠ A B T =$ ______.

105^{\circ}

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75^{\circ}

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70^{\circ}

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15^{\circ}

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Solution

The correct option is B $75^{\circ}$

$∠ A B T = 75^{\circ}$ (angles in the alternate segment are equal )

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In the given figure AB is a chord of a circle with centre O and BT is a tangent. If ∠ACB=75∘, then ∠ABT= ______.

The correct option is B 75∘ ∠ABT=75∘ (angles in the alternate segment are equal )

In the given figure AB is a chord of a circle with centre O and BT is a tangent. If $∠ A C B = 75^{\circ}$ , then $∠ A B T =$ ______.

The correct option is B $75^{\circ}$

$∠ A B T = 75^{\circ}$ (angles in the alternate segment are equal )