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Triangles inside circles
Posted 28 February 2014 - 12:18 AM
A few puzzles posted in this forum have related to random triangles inside a circle.
By evaluating nasty integrals, or by my preferred method, simulation, it can be shown, perhaps surprisingly, that triangles constructed from sets of three uniformly chosen points within a circle cover only about 7.388% of the circle's area on average. After looking at Phil's recent problem on the subject, I simulated 1 million triangles to determine the median area. It turns out to be about 5.335% of the circle's area. Read: a random triangle has a 50% chance of being smaller.
If the distribution of random-triangle areas has a mean of about 7.4% and a median of about 5.3%, what value might you expect for the mode?
Vidi vici veni.
Posted 25 March 2014 - 08:28 AM Best Answer
Vidi vici veni.
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