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RebeccaPink6398

  • one year ago

can someone please help me to understand this? Pie

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  1. rebeccapink6398
    • one year ago
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  2. anonymous
    • one year ago
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    Well the area of a circle is Pi(r)^2, so just put in the radius where it says r

  3. rebeccapink6398
    • one year ago
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    i dont get what your saying like what do i do first.

  4. rebeccapink6398
    • one year ago
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    @madison.bush

  5. anonymous
    • one year ago
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    just plug in the radius to that equation i just gave you. So it will look like \[A=\pi(9)^2\]

  6. rebeccapink6398
    • one year ago
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    ok so( pie times 9) times 2?

  7. anonymous
    • one year ago
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    no its pi times 9 squared. 9 squared is 81. So the final equation is \[A=81\pi cm^2\]

  8. anonymous
    • one year ago
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    so the anwer is D

  9. rebeccapink6398
    • one year ago
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    i got C A. 1017.36 cm3 B. 169.56 cm3 C. 254.34 cm3 D. 84.78 cm3 @madison.bush

  10. anonymous
    • one year ago
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    yes it is C.

  11. rebeccapink6398
    • one year ago
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    lol okay thanks!

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