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  • 02-02-2016
  • Mathematics
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How do you solve for r in the formula a=pi r squared

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RASEA23
RASEA23 RASEA23
  • 02-02-2016
To solve for y, all you have to do is just separate r from all of the others and make it equal to the rest of the equation. So first it was, a=pi*r squared. 
Divide by pi on each side, 
a/pi=r^2
Take the square root of each side;
square root of (a/pi) =r
and that's all
Hope this helps. 
Answer Link

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