SOLUTION: Manda made a circular tabletop that has an area of 452 square inches. Which is closest to the radius of the tabletop?

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Question 1046351: Manda made a circular tabletop that has an area of 452 square inches. Which is closest to the radius of the tabletop?
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

an area of circle is A=r%5E2%2Api
if A=452in%5E2, then we have 452in%5E2=r%5E2%2Api...solve for r
452in%5E2=r%5E2%2A3.14
452in%5E2%2F3.14=r%5E2
143.949in%5E2=r%5E2
r=sqrt%28143.949in%5E2%29
r=11.997876669894in
r=11.999in