The Circumference of a circle is equal to the area of the circle. Find the radius.
Geometry-8th gr - Dr. Jane, 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 - Mona, Friday, March 8, 2013 at 6:29pm