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Question

A circle of radius r has a centre O. What is first step to construct a tangent from a generic point P which is at a distance r from O?


A

Join OP.

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B

With P as centre and radius > r, draw a circle and then join OP.

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C

With P as centre and radius < r, draw a circle and then join OP.

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D

With P as centre and radius = r, draw a circle and then join OP.

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Solution

The correct option is A

Join OP.


P is a point on the circle.
At P, only one tangent can be drawn and it is perpendicular to the line joining the centre O and the point of contact P.

So our first step would be to join OP.


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