The circumference of a circle is 3 pi miles. What is the diameter?

Question

The circumference of a circle is 3 pi miles. What is the diameter?

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Serenity 2 weeks 2021-11-24T00:04:52+00:00 2 Answers 0 views 0

Answers ( )

  1. Emma
    0
    2021-11-24T00:05:54+00:00

    Answer:

    3 miles

    Step-by-step explanation:

    The circumference of a circle can be found using:

    c=\pi d

    We know the circumference is 3\pi, so we can substitute that in for c

    3\pi=\pi d

    We want to find the diameter. To do this, we need to get d by itself. It is being multiplied by pi. To undo this, divide both sides by pi. This will cancel pi, and leave d by itself.

    3\pi /\pi =\pi d/ \pi

    3=d

    So, the diameter is 3 miles

  2. Emma
    0
    2021-11-24T00:06:48+00:00

    Answer:

    Diameter is 3

    Step-by-step explanation:

    C=2πr

    3π = 2πr

    3π / 2π = r  (Divide each side by 2π)

    3/2 = r   (Simplify π)

    3/2 *2 = d  (d = 2r)

    d = 6/2 = 3

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