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Lines drawn at a tangent (Discussion)

ankita saidThu, 19 Jun 2008 10:22:36 -0000 ( Link )

Consider 32 lines drawn at a tangent to an ellipse. The lines break up the plane into several regions, some bounded (i.e., enclosed) and others unbounded. How many unbounded regions are there?

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  1. ankita saidMon, 23 Jun 2008 12:32:10 -0000 ( Link )

    Answer: 64

    If there are 32 tangent lines, then there are 64 unbounded regions. It is not very difficult to visualize that each tangent line drawn creates two unbounded regions.

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