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anonymous

  • one year ago

find the area of the circle the radius is 3cm

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  1. Astrophysics
    • one year ago
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    \[A = \pi r^2\]

  2. anonymous
    • one year ago
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    So basically u use what @Astrophysics stated. plug in 3 for r, where r is the radius.

  3. anonymous
    • one year ago
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    That is basically it.

  4. Kash_TheSmartGuy
    • one year ago
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    \[A=3.14*3^{2}\]\[A=28.26\]28.26 is your answer. Can you give me a medal, please?

  5. UsukiDoll
    • one year ago
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    or we can just leave it as \[A=9 \pi \] means the same thing. It's till 28.2...actually I got 28.27 but it's close.

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