triangle with three right angles.
1. geometrical dogma adhered
2. time yourself
3. googling won't help.
go!
addendum -
![[Image: 23wwcg8.jpg]](http://i41.tinypic.com/23wwcg8.jpg)
It'd have to be done on a sphere. Like walking from the north pole and turning 90 degrees three times. It looks like a bowed out triangle.
i couldn't forumlate this equation.. I'm stuck looking for a Like button T_T