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DallasLifeBaby01

  • one year ago

Find the circumference of the following circle. (Use 3.14 for π.) drawing in the comments

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  1. DallasLifeBaby01
    • one year ago
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    |dw:1437871014331:dw|

  2. Astrophysics
    • one year ago
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    \[C = 2\pi r\]

  3. Astrophysics
    • one year ago
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    What is the diameter they gave you?

  4. DallasLifeBaby01
    • one year ago
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    all they gave me is a picture the one i drew

  5. Astrophysics
    • one year ago
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    You were given no dimensions at all?

  6. Astrophysics
    • one year ago
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    Check again

  7. DallasLifeBaby01
    • one year ago
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    it only has the circle and the 5 inches

  8. Astrophysics
    • one year ago
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    Oh so it has 5 inches as the diameter, sorry the image didn't show 5 inches for me.

  9. Astrophysics
    • one year ago
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    So you need to find the radius \[r = \frac{ d }{ 2 }\]

  10. DallasLifeBaby01
    • one year ago
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    so would i divide 5 by 2?

  11. Astrophysics
    • one year ago
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    Yes, exactly

  12. Astrophysics
    • one year ago
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    Because that's the diameter, the radius is half of a the diameter, |dw:1437871404552:dw|

  13. DallasLifeBaby01
    • one year ago
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    oh okay thanks

  14. Astrophysics
    • one year ago
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    |dw:1437871435710:dw|

  15. Astrophysics
    • one year ago
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    See radius is half of the diameter, and np

  16. DallasLifeBaby01
    • one year ago
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    how would i find circumference?

  17. Astrophysics
    • one year ago
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    \[C = 2 \pi r\] circumference is the distance around a circle, which is given by the formula I provided.

  18. DallasLifeBaby01
    • one year ago
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    okay so would i multiply 2 x Pi x the radius?

  19. Astrophysics
    • one year ago
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    Yup, remember they want you to use 3.14 for pi

  20. DallasLifeBaby01
    • one year ago
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    let me solve and ill tell you what i get

  21. Astrophysics
    • one year ago
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    Ok np

  22. DallasLifeBaby01
    • one year ago
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    i got 15.7

  23. Astrophysics
    • one year ago
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    :)

  24. DallasLifeBaby01
    • one year ago
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    was i correct?

  25. Astrophysics
    • one year ago
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    Yup

  26. DallasLifeBaby01
    • one year ago
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    yayy thank you!

  27. Astrophysics
    • one year ago
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    Your welcome

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