Using 3.14 for π, what is the volume of a ball with a diameter of 7 centimeters

1 answer:

4 0

If the diameter is 7, the radius is half that or 3.5, thus

$\bf \textit{volume of a sphere}\\\\
V=\cfrac{4\pi r^3}{3}~~
\begin{cases}
r=radius\\
-----\\
r=3.5
\end{cases}\implies V=\cfrac{4\pi (3.5)^3}{3}\implies V=\cfrac{171.5\pi }{3}$

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