Trivia

Subject:
Re: Kent or Larry
Response To:
Kent or Larry ()

Larry Barrett
If I recall the problem/answer correctly it went this way. Every triangle has three sides. There are six lines in this problem and each of the six lines crosses all of the other five lines. So the number of triangles is just the number of combinations of three lines out of the total number of lines - six. This is given by 6!/3!x3! =
6x5x4/3x2x1 = 20.

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