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3 tennis balls in a can

by Jake Hill

3 tennis balls in a can

Act One

  • Jake Hill

    Jake Hill

    December 09, 2013

    Which is greater, the height or the circumference of the can?

  • Teacher note
    This one is interesting both for it's intuitional intrigue and its theoretical vs. real-world results.

Act Two

  • Teacher note
    Theoretically, algebra shows us that h=3D < 3pi=C. (Circumference is greater, right?)

    The actual can's style can vary our real-world results, however. Different companies have different spacing above/below and around the tennis balls.

    Classroom measurements of displayed pictures or actual ball-cans lead to differences between our theoretical and experimental data.


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