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Miley · Answer 1 · 2018-09-09T14:15:29+0000

the air blown into the balloon, is the content inside the balloon, and therefore the volume of the spherical balloon.

now, if the diameter is 2 feet, the radius of it is half that, or 1 foot.

$\bf \textit{volume of a sphere}\\\\ V=\cfrac{4\pi r^3}{3}\quad \begin{cases} r=radius\\ -----\\ r=1 \end{cases}\implies V=\cfrac{4\pi 1^3}{3}\implies V=\cfrac{4\pi }{3}$

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