SOLUTION: A=pie(R)(S)+ Pie(R)^2 solve 4 S

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Question 158641: A=pie(R)(S)+ Pie(R)^2
solve 4 S
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
a=pir*s+pir^2
pis=a-pir^2
s=(a-pir^2)/pi