Math

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Thank you Ms. Sue. Sorry I didn't tell you we're just learning that pi=3 for now. It made everything complicated for you to check if my answers were correct. :P

But what is this formula usually used for?Diameter=Circumference/π?

Is it used to find the diameter of something?

  • Math -

    That's ok. I'm glad we've straightened out that problem.

    The formula is usually written as
    Circumference = pi * diameter

    But if we want to find the diameter, we can switch it around to
    Diameter=Circumference/π

  • Math -

    And the formula Radius=Circumference/2π
    is that used to find the radius? And is it
    usually written as Circumference=2πr?

  • Math -

    Yes.

  • Math -

    Okay, thank you again! :D

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