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Grayfox5 Group Title

A circular disc has a diameter of 24 centimeters. What is the area of the disc?

  • 2 years ago
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  1. madscientist101 Group Title
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    144pi

    • 2 years ago
  2. rulnick Group Title
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    144 pi cm^2, because area = pi d^2 / 4 and d = 24 cm.

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  3. madscientist101 Group Title
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    or... simply A=pi(r^2) and r=d/2

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  4. rulnick Group Title
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    In decimal, that's about 452.4 cm^2.

    • 2 years ago
  5. ChrisS Group Title
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    \[\pi*r^{2}\] \[\pi*12^{2}\] \[144\pi\]

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