1 Answer

Pek · Answer 1 · 2023-12-10T18:41:03+0000

The diameter, d, is calculated as follows:

$d=2\cdot r$

where r is the radius. Substituting with r = 9.4 mm, we get:

$\begin{gathered} d=2\cdot9.4 \\ d=18.8\operatorname{mm} \end{gathered}$

The circumference of a circle, C, is calculated as follows:

$C=2\pi r$

Substituting with r = 9.4 mm, we get:

$\begin{gathered} C=2\pi\cdot9.4 \\ C\approx59.06\operatorname{mm} \end{gathered}$

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