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QHE Question:

A piece of wood 20 cm long is cut into three pieces at random.

What is the probability that the three pieces can form a triangle?


0 less than 0.5 0.5 more than 0.5 1



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Alternatively, you can use this Cabri Géomètre II plus figure to create random triangles.

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Extension question - If a point P is randomly placed on AB with midpoint M, what is the probability that AP, PB and AM can be made to form a triangle?