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Posted by 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.

  • Geometry-8th gr - , Friday, March 8, 2013 at 5:47pm

    Circumference = 2 times pi times r
    Area = pi times r-squared

    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.

  • Geometry-8th gr - , Friday, March 8, 2013 at 6:29pm

    Thanks!

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