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UmmmHELP

  • 3 years ago

A circle has an area of 841π cm2. What is the diameter?

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  1. azolotor
    • 3 years ago
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    The formula for the area of a circle is \[A = \pi r^2\] so we get \[841 \pi = \pi r^2\] pi cancels and you get \[841 = r^2\] so\[r = \sqrt{841}\] and \[d=2r=2\sqrt{841}\] Make sense?

  2. UmmmHELP
    • 3 years ago
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    Thank you!

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