Question 416332
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b>
Hi
D = {{{sqrt ((x1-x2)^2+(y1-y2)^2))}}}
(0,2)
(4,6)
D = {{{sqrt ((-4)^2+(-4)^2))}}} = {{{sqrt(32)}}} = {{{4sqrt(2)}}} = 5.6569
{{{drawing(300,300,   -10,10,-10,10, grid(1),
circle(0, 2,0.4),
line(0,2,4,6),
circle(3, 0,0.4),
circle(7, 4,0.4),
circle(4, 6,0.4),

graph( 300, 300, -10,10,-10,10))}}}