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Question

Maximum number of tangents that can be drawn from an external point to a circle is ______ .

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Solution

The tangent of a circle is a special case of the secant when the two end points of the corresponding chord coincide.
From an external point P, only two tangents (PA and PB) can be drawn.
Also, both the drawn tangents are equal in length.

Hence, maximum 2 tangents can be drawn from an external point to a circle.

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