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Answer:
Step-by-step explanation:
[tex]\sf\boxed{(x-h)^2+(x-k)^2=r^2}[/tex]
Here, h , k are the co ordinates of the center and r is the radius
[tex]\sf (x - 2)^2 + (y-[-8])^2 = 2^2\\\\(x - 2)^2 + (y + 8)^2= 4[/tex]