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Mathematics 17 Online
OpenStudy (anonymous):

What is the diameter of the following circle? https://static.k12.com/eli/bb/259/3_25239/2_17288_3_25242/2a851a66601e84fb5bc3f44d95de93fa5161f72e/media/61d1d108b98452231ead28bdb5b8b31bd7b1a24d/mediaasset_774768_1.gif

OpenStudy (joannablackwelder):

The general equation of a circle is|dw:1439406361283:dw|

OpenStudy (joannablackwelder):

Where (h,k) is the center of the circle and r is the radius.

OpenStudy (joannablackwelder):

Can you identify r?

OpenStudy (anonymous):

r =64

OpenStudy (joannablackwelder):

Close, r^2=64

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