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  4. In the following figure, O is the centre of the circle and if angle O A B= 30°, then the acute angle between A B and the tangent P Q at B is

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Q. In the following figure, $O$ is the centre of the circle and if $\angle O A B=$ $30^{\circ}$, then the acute angle between $A B$ and the tangent $P Q$ at $B$ isMathematics Question Image

Geometry

Solution:

Apply ‘alternate segment theorem’.