Respuesta :

Answer:

D. pi

Step-by-step explanation:

Circumference of a circle = [tex] \pi d [/tex]

Diameter = d

Therefore, ratio of circumference of a circle to its diameter would be:

[tex] \pi d : d [/tex]

[tex] = \frac{\pi d}{d} = \pi [/tex] => (d cancels d)

Therefore, the ratio of the circumference of a circle to its diameter is [tex] \pi [/tex]

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