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تويتر \ Abierto Mexicano على تويتر: "Divide the circumference of a tennis ball by its diameter and you get 3.14. Divide the circumference of the planet Mars by its diameter and you
Alberta Tennis Centre - Do you know what the circumference of a regular tennis ball is? Math is everywhere, even in the sport of tennis! Thanks @p3yyc for asking this interesting question! . . . #
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Mark Chubb on Twitter: "Which is longer: -the height of this tennis ball canister; or -the circumference of one of the tennis balls How might this question help us learn about our
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