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Lv 6
? asked in Science & MathematicsMathematics · 6 years ago

For n≥3 points on a plane what is the maximum possible n such that any 3 of the chosen points form a right-angled triangle?

I'm thinking 4 points: those of a rectangle. The hint in the question says to use "Fubini's Principle or otherwise".

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  • Melvyn
    Lv 7
    6 years ago

    i would suggest using Fubinis principle ...

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