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mayrabris2cute

  • 3 years ago

What is the area of a circle if the diameter is 12 feet?? Answers: a. 113.0 ft² b. 124.8 ft² c. 37.7 ft² d. 452.2 ft²

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  1. cgreenwade2000
    • 3 years ago
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    Area of a circle is A= (pi)*r^2

  2. hartnn
    • 3 years ago
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    \[A =\pi d^2/4\] just plug in d =12

  3. mayrabris2cute
    • 3 years ago
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    Thx @hartnn

  4. hartnn
    • 3 years ago
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    welcome ^_^

  5. mayrabris2cute
    • 3 years ago
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    So its 3.14*144 = 452.16/4???

  6. hartnn
    • 3 years ago
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    you forgot to divide by 4.

  7. cgreenwade2000
    • 3 years ago
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    |dw:1358452844870:dw|

  8. cgreenwade2000
    • 3 years ago
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    Diameter is 2*r

  9. hartnn
    • 3 years ago
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    3.14*144 /4=

  10. mayrabris2cute
    • 3 years ago
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    ?So no dividing??? I'm confused!! I just multiply by 2 or do I also divide by 4

  11. GiGIgo3
    • 3 years ago
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    yea divide by 4

  12. mayrabris2cute
    • 3 years ago
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    Ok.... Idk who is right, @hartnn , @cgreenwade2000 , or @GiGIgo3

  13. hartnn
    • 3 years ago
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    when you put d=12 you get A = 3.14 *144/4 = 113.0 that would be the answer :)

  14. GiGIgo3
    • 3 years ago
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    solve this 12x12=???.? ???.?x3.14 = ???? ???? / 4 = your answer

  15. hartnn
    • 3 years ago
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    follow your calculations and my formula :)

  16. mayrabris2cute
    • 3 years ago
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    Ok. Wells that what I got but @GiGIgo3 is sayin different!

  17. GiGIgo3
    • 3 years ago
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    im wrong

  18. GiGIgo3
    • 3 years ago
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    you do divide by four, i forgot the step

  19. mayrabris2cute
    • 3 years ago
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    Okkk....Thx guys :) :)

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