@article {MATHEDUC.05986098,
author = {Percy, Andrew and Carr, Alistair},
title = {One coincidence after another.},
year = {2011},
journal = {Mathematical Spectrum},
volume = {44},
number = {1},
issn = {0025-5653},
pages = {5-7},
publisher = {Applied Probability Trust (APT) c/o University of Sheffield, School of Mathematics and Statistics (SoMaS), Sheffield},
abstract = {Imagine ``Euclid's windmill", i.e. triangle ABC with right angle at A and squares AGFB, CKHA (and BDEC). Altitude at A in triangle ABC, lines CF and BK intersect in a point. It is proved that this is also true in a situation where triangle ABC is not rightangled.},
reviewer = {Gerd Walther (Kiel)},
msc2010 = {G40xx},
identifier = {2011f.00485},
}