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OpenStudy (anonymous):
Suppose the area of a circle is 16π. What is its diameter?
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OpenStudy (anonymous):
Thank you!!
OpenStudy (anonymous):
Use \[D=2 R\\Area = \pi R^2\]
OpenStudy (anonymous):
\[ 16 \pi = \pi R^2 \]
OpenStudy (anonymous):
R=4 and D=2(4)=8
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