Editing Euler line (section)

===Automedian triangle===

The Euler line of an [[automedian triangle]] (one whose [[median (geometry)|medians]] are in the same proportions, though in the opposite order, as the sides) is perpendicular to one of the medians.<ref name="parry">{{citation
 | last = Parry | first = C. F.
 | issue = 472
 | journal = The Mathematical Gazette
 | jstor = 3620241
 | pages = 151–154
 | title = Steiner–Lehmus and the automedian triangle
 | volume = 75
 | year = 1991| doi = 10.2307/3620241
 }}.</ref>