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abby1919

  • 3 years ago

a sphere has volume 36 pi ft^3. what is its total area? a.72 pi ft^3 b.18 pi ft^3 c.36 pi ft^3 d. 32/3 pi ft^3

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  1. geoffb
    • 3 years ago
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    Area is in units-squared (i.e., \(\text{ft}^{2}\)), so they're all wrong.

  2. abby1919
    • 3 years ago
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    sorry it is ft^2

  3. cherio12
    • 3 years ago
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    geoff is right... but the volume of a sphere is 4/3pir^3 so 4/3pir^3 =36pi Solve for r r=3 Area of a sphere ..hmm sorry dont remember formula all i can think of is pir^2 but thats a circle

  4. geoffb
    • 3 years ago
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    Area of a sphere is \(4 \pi r^2\).

  5. abby1919
    • 3 years ago
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    thank you

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