How many tangents can be drawn through a circle? answer with proof.

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A tangent to a circle is defined as a line that intersects the circle at one and only one point. Such a line cannot be drawn through a circle as a circle is a closed geometric figure. If a line is drawn within a circle it has to touch the...

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A tangent to a circle is defined as a line that intersects the circle at one and only one point. Such a line cannot be drawn through a circle as a circle is a closed geometric figure. If a line is drawn within a circle it has to touch the circle at two points, one point it enters the circle from and the other from which it emerges. The line is therefore not a tangent.

There are no lines that can be drawn through a circle and which are tangential to it.

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