Posted by **Carlee'** on Tuesday, February 21, 2012 at 8:48am.

The area of a circle is 18pi square meters. What is the radius (leaving answer in simplest radical form)

- precalc/trig help please -
**drwls**, Tuesday, February 21, 2012 at 8:55am
pi*R^2 = 18*pi

R^2 = 18

R = 3*sqrt2 m^2 = = 4.24 m^2

- precalc/trig - PS -
**Steve**, Tuesday, February 21, 2012 at 10:45am
That would be in m, not m^2 :-(

- precalc/trig help please -
**drwls**, Tuesday, February 21, 2012 at 10:48am
Duh. you are correct. Thank you

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