Hi, find the center and the radius of a circle with the equation (6-x)^2+(y+5)^2=37 Standard Form of an Equation of a Circle is where Pt(h,k) is the center and r is the radius (6-x) = -(x-6) and [-(x-6)]^2 = (x-6)^2 (x-6)^2+(y+5)^2=37 C(6,-5) , r =