roro26
roro26 roro26
  • 25-05-2017
  • Mathematics
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Can someone please help me

Can someone please help me class=

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violinist747
violinist747 violinist747
  • 25-05-2017
To isolate r, first divide both sides by pi. That will leave you with r^2=A/pi. Then square root both sides to completely isolate r. 

r=√A/pi
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