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anonymous

  • one year ago

What is the radius? PLEASE HELP???

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  1. anonymous
    • one year ago
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  2. zarkam21
    • one year ago
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    Radius is a straight line from the center to the circumference of a circle or sphere.

  3. anonymous
    • one year ago
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    @casdawson could you help?

  4. anonymous
    • one year ago
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    i know @zarkam21 lol, look at my link though

  5. zarkam21
    • one year ago
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    You need to divide so take the number of square meters and divide by the pie symbol

  6. zarkam21
    • one year ago
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    What do you get?

  7. anonymous
    • one year ago
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    21.0084

  8. zarkam21
    • one year ago
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    So your answer would be...? =)

  9. anonymous
    • one year ago
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    \[A=\pi*r^2\]\[66=\frac{22}{7}*r^2\]\[\frac{7}{22}*66=r^2\]\[\frac{462}{22}=r^2\]\[21=r^2\]\[\sqrt{21}=r \]

  10. anonymous
    • one year ago
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    lol 21?? wait, where dose the 22/7 come in at?

  11. anonymous
    • one year ago
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    thank you guys!!

  12. anonymous
    • one year ago
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    No problem :)

  13. anonymous
    • one year ago
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    could you help with this one too?

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  14. anonymous
    • one year ago
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    @LegendarySadist

  15. anonymous
    • one year ago
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    I'm not that good at graphs like that, sorry =(

  16. anonymous
    • one year ago
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    aww, its okay thank you anyway

  17. anonymous
    • one year ago
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    Second to last answer

  18. anonymous
    • one year ago
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    No problem, wish I could help. If you ask it as a separate question someone more qualified will help though.

  19. anonymous
    • one year ago
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    good suggestion! @LegendarySadist , on the second problem? @casdawson

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