Posted by Mona on Friday, March 8, 2013 at 5:43pm.
The Circumference of a circle is equal to the area of the circle. Find the radius.
Thanks.

Geometry8th gr  Dr. Jane, Friday, March 8, 2013 at 5:47pm
Circumference = 2 times pi times r
Area = pi times rsquared
If Area = Circumference, then..
(2)(pi)(r) = (pi)(r^2)
Divide both sides by r
2(pi) = (pi)(r)
Now, solve for r by dividing both sides by pi.

Geometry8th gr  Mona, Friday, March 8, 2013 at 6:29pm
Thanks!
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