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Triangle From a Ruler

Probability puzzles require you to weigh all the possibilities and pick the most likely outcome.


Puzzle ID:#26982
Fun:*** (2.46)
Difficulty:*** (2.79)
Submitted By:phrebh*us****
Corrected By:phrebh




Fred had a ruler that was exactly 12 inches long. His second cousin, Pop, was practicing with her Samurai sword and made two straight slashes at arbitrary spots on the ruler, cutting it into three pieces. What is the probability that the pieces of Fred's ruler can form a triangle?


Graphing it is easiest.

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