Homework Help: Math, Algebra

Posted by syram on Thursday, March 21, 2013 at 3:38pm.

Circle O has a circumference of 220 meters. What is the approximate area of circle O? Show your work.

Math, Algebra - Steve, Thursday, March 21, 2013 at 4:16pm
r = C/2pi
a = pi r^2 = pi * (C/2pi)^2 = C^2/(4pi)

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