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Random chord problem (Posted on 2009-05-11) Difficulty: 1 of 5
Pick two points at random on a circle and draw the chord connecting them.

Pick two more points and connect them with a second chord.

What is the probability that these chords intersect?

See The Solution Submitted by Jer    
Rating: 3.0000 (1 votes)

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re(2): solution, maybe (good question) Comment 15 of 15 |
(In reply to re: solution, maybe (good question) by Daniel)

If you extend chords beyond the circle they are called secants. 

The probability of them being parallel is zero.

  Posted by Jer on 2009-05-12 13:47:39

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