Question 1198124
Finding one median and its length, as an example:
(1,5), 
(5,-1)  I. Midpoint ( 6/2, 4/2) = (3, 2)
II. Distance from (11,9) to (3,2) = {{{sqrt(8^2 + 7^2)}}} = 10.63 rounded
___
(11,9)
(5,-1)  I. Midpoint ( 8, 4)
II. Distance from (11,9) to (1,5)= {{{sqrt(10^2 + 4^2)}}}
etc
{{{drawing(300,300,   -15,15,-15,15, grid(1), 
circle(1, 5,0.6),
circle(5,-1, 0.6),
line(1,5,5,-1),
line(11,9,5,-1),
line(3,2,11,9),
circle(11,9, 0.6),
circle(3,2, 0.6),
circle(8,4, 0.6),
graph( 300, 300,  -15,15,-15,15,0)) }}}