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anonymous

  • one year ago

PLEASE HELP WILL AWARD FAN AND MEDAL!!!!!! circle a as an area of 254.469 square units. What is the circumference of circle a ? Round your answer to the nearest hundredth, if necessary. A. 9.00 units B. 15.95 units C. 56.55 units D. 81.00 units

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  1. anonymous
    • one year ago
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    |dw:1436273721456:dw|

  2. anonymous
    • one year ago
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    and so that is the opposite of \[\pi \times R ^ 2\]

  3. anonymous
    • one year ago
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    yes and i would plug in 254.469 for area correct?

  4. anonymous
    • one year ago
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    yes

  5. anonymous
    • one year ago
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    but not for circumference.

  6. anonymous
    • one year ago
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    well wouldnt you solve for the radius then plug it in to the formula to find circumference

  7. anonymous
    • one year ago
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    and \[\pi = 3.1415926535898\]

  8. anonymous
    • one year ago
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    yes

  9. anonymous
    • one year ago
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    yes the formula for the circumference of a circle is R x \[\pi \times 2\]

  10. anonymous
    • one year ago
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    okay so then i solve for r then plug that in and find the circumference?

  11. anonymous
    • one year ago
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    yes, that is right

  12. anonymous
    • one year ago
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    plus i am only in grade 3

  13. anonymous
    • one year ago
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    yeah

  14. anonymous
    • one year ago
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    can you medal and fan now?

  15. anonymous
    • one year ago
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    medal you and fan

  16. anonymous
    • one year ago
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    is c correct?

  17. anonymous
    • one year ago
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    thank you soo much :)

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spraguer (Moderator)
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