id: 06503242
dt: j
an: 2015f.00679
au: Glaister, Paul
ti: A van Aubel theorem revisited.
so: Math. Spectr. 48, No. 1, 33-36 (2015).
py: 2015
pu: Applied Probability Trust (APT) c/o University of Sheffield, School of
Mathematics and Statistics (SoMaS), Sheffield
la: EN
cc: G40
ut: van Aubel theorem; squares; quadrilaterals; midpoints
ci:
li:
ab: Summary: The lines joining the midpoints of the squares on opposite sides
of a plane quadrilateral are equal in length and perpendicular. This
result, due to van Aubel, is proved by making novel use of the vector
product.
rv: