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A box contains seven sticks which are respectively 2cm,3cm,4cm,7cm,8cm,and 11cm long.

How do I find the probability that any three sticks chosen randomly from the box to form a triangle?

  • 0
    Well, which combinations will give you a triangle? (They're easy to enumerate in this case.) How many total combinations are there?2011-12-18
  • 4
    2,3,4,7,8,11: where's the seventh stick?2011-12-18

2 Answers 2