Circle equation (x - h)^2 + (y - k)^2 = r^2 Since radius isn't given use the center and point, with the distance formula, to find the radius. D=sqrt((x2-x2)^2+)y2-y1)^2) D=sqrt((1-0)^2+(2-6)^2 D=sqrt(1+16) D=sqrt 17 radius = sqrt 17 (h, k) is the center and r is the radius (x - 1)^2 + (y - 2)^2 = 17
The easiest way I know is to multiply the divisor by different numbers to see how many times it will go into the dividend. multiplying 486 by 2 or three and seeing which one gets closest.
