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emilyslen emilyslen
  • 30-11-2014
  • Mathematics
Answered

solve for r: A=2 pi r squared

Verified Answer :

Anonymous Anonymous
  • 30-11-2014

\(A= 2\pi r^2 \\ \frac{A}{2 \pi} =r^2 \\ r= \sqrt{\frac{A}{2 \pi}}\)

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