Question

The circle is centered at the origin and the length of its radius is six what is the circles equation

Answer 1

An equation of the circle with center (h,k) and radius r is 

     (x-h)2 + (y-k)2 = r2.

 

So, if the center is (0,0) and the radius is 6, an equation of the circle is:          (x-0)2 + (y-0)2 = 62

Answer 2

Answer: X2 + Y2 = 36

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(APEX)