Respuesta :

circumference =
[tex]2\pi \: r[/tex]
r = radius
diameter of a circle = 2r

toporc
Let the circumference of a circle be C, and the diameter of a circle be d.[tex]C=\pi\times d[/tex]
Rearranging to find the diameter in terms of the circumference, we get the formula:
[tex]d=\frac{C}{\pi}[/tex]

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