Answer
Centre = (0, 0)
Radius = 5
Work Step by Step
$(x-h)^{2}$ + $(y-k)^{2}$ = $r^{2}$
Centre = (h, k)
Radius = r
$(x-0)^{2}$ + $(y-0)^{2}$ = $5^{2}$
Centre = (0, 0)
Radius = 5
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