Question 1077956
Center point  (h,k), radius r;
Equation is {{{(x-h)^2+(y-k)^2=r^2}}}.


Center point, (h,k), point on circle (p,v);
Equation is  {{{(x-h)^2+(y-k)^2=(h-p)^2+(k-v)^2}}}, which is based on using Distance Formula.


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