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anonymous

  • one year ago

Find the exact circumference of a circle with the given radius. 7 feet C = 7π ft. 14π ft. 27π ft.

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  1. anonymous
    • one year ago
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    \[C=2piR\]

  2. anonymous
    • one year ago
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    don't count and round pi, leave it as variable. 2pi*7 feet=14pi feet

  3. kva1992
    • one year ago
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    formula for the circumference is C=Dπ so all you do is get the diameter from the radius thus it would be 14πft

  4. anonymous
    • one year ago
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    is 2pi ...3.14*2? and multiplied by c?

  5. anonymous
    • one year ago
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    pi is not multiplied - leave it as variable - this way you will get exact answer. 2pi is multiplied by radius.

  6. kva1992
    • one year ago
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    in order to find the circumference you multiply Diameter times π and in order to get the diameter you double the radius

  7. anonymous
    • one year ago
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    oh so its 14pi?

  8. kva1992
    • one year ago
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    correct

  9. anonymous
    • one year ago
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    yes it is

  10. anonymous
    • one year ago
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    wow thnx so much :)

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