Q. 34.4( 204 Votes )

A tangent PQ at a

Answer :

(D)

We know that the line drawn from the centre of the circle to the tangent is perpendicular to the tangent.


OP PQ


By applying Pythagoras theorem in ΔOPQ,



OP2 + PQ2 = OQ2


52 + PQ2 =122


PQ2 =144 - 25


PQ = cm.


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