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Posted by Abbey on Wednesday, February 27, 2013 at 12:50pm.

ind the radius of a sphere with a surface area of 804 cm2

804 = 4/3 pi r^3 r = ∛(603/pi) ~= 5.77

oops. I was thinking volume 804 = 4 pi r^2 r = √(201/pi) ~= 8.00

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