Question 866355
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Hi
(x-1)^2 + (y+2)^2 = 1 (r^2)
(x-4)^2 + (y-1)^2 = 5^2   r^2 = (-3)^2 + 4^2 = 25
(x+3)^2 + (y-3)^2 = 20    M = (-3,3)  r^2 = 2^2+ 4^2 = 20
Use:
D = {{{sqrt ((x[1]-x[2])^2+(y[1]-y[2])^2))}}}
Midpoint Pt(x,y):  ( {{{(x[1] + x[2])/2}}}, {{{(y[1] + y[2])/2  )}}})