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STUCKINTHIS

  • 2 years ago

Which of the following is not equivalent to the formula for the circumference of a circle, C = 2 πr ?

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  1. jim_thompson5910
    • 2 years ago
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    What are your answer choices?

  2. STUCKINTHIS
    • 2 years ago
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    hold on :)

  3. jim_thompson5910
    • 2 years ago
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    ok

  4. STUCKINTHIS
    • 2 years ago
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    C over π = 2 C over 2π = r C over 2r = π 2π over C = r

  5. STUCKINTHIS
    • 2 years ago
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    there (:

  6. jim_thompson5910
    • 2 years ago
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    notice in choice A, if you multiply both sides by pi, you get C/pi = 2 C = 2pi which is missing the 'r' term, so there's no way it can be equivalent to C = 2pi*r

  7. STUCKINTHIS
    • 2 years ago
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    alright :) thanks so the answer is C=2pi ? :0

  8. jim_thompson5910
    • 2 years ago
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    yes, thats correct

  9. STUCKINTHIS
    • 2 years ago
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    <3 thank you!! thank you!! thank you!!

  10. jim_thompson5910
    • 2 years ago
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    you're welcome, glad to be of help

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