Number of tangents
Geometry
Level
pending
What is the number of tangents that can be drawn from a point inside the circle ?
1
Infinity
0
2
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1 solution
A tangent line is possible iff it intersects the circle in one circumferential point. This is impossible if the point is internal to the circle since it will only yield either a chord or a secant line ⇒ two circumferential intersection points.