Four in one............one in four........reflex sym...........the square root of 2 is the hyp of a right triangle..........................a triangle whose biggest angle is 90 degrees.......................and whose two smaller sides............are both one.............45 and 45..........and 90.................which is in the dec expan of e..................................after the 1st 10 numbers in e..........is 459045....................


square root(2) =

1.41421356237