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kristakingmath.com
How to find the center and radius of a circle from its equation — Krista King Math | Online math help
In this lesson we’ll look at how to write the equation of a circle in standard form in order to find the center and radius of the circle. The standard form for the equation of a circle is (x-h)^2 (y-k)^2=r^2, where r is the radius and (h,k) is the center. Sometimes in order to write the equation of
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