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anonymous

  • one year ago

A circular sundial has a circumference of 32􏰈 inches. What is the area of the sundial?

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  1. Photon336
    • one year ago
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    \[A = pir ^{2}\] we know that our circumference is 32 inches so we must find the radius to find the area. \[C = 2pir\] \[\frac{ c }{ 2\pi } = r \] \[\frac{ 32 inches }{ 2\pi } = radius \]

  2. anonymous
    • one year ago
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    Edit: A circular sundial has a circumference of 32π􏰈 inches. What is the area of the sundial?

  3. Photon336
    • one year ago
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    ok @frebrezze let me modify my answer

  4. Photon336
    • one year ago
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    \[\frac{ 32\pi }{ 2\pi } = 16 inches = r\]

  5. Photon336
    • one year ago
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    now \[a = pir ^{2}\] \[\pi*(16)^{2} = 256\pi \]

  6. Photon336
    • one year ago
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    does this make sense? @frebrezze ?

  7. anonymous
    • one year ago
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    Thank you!!! sorry for typing it wrong and yes

  8. Photon336
    • one year ago
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    No problem and while we're at it Welcome to Open Study @frebrezze

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