Gold Nuggets from Unexpected Places
- Author:
- Bill Lombard
Gold Nuggets from Unexpected Places
In 1983 amateur mathematician George Odom discovered that if
points A and B are the midpoints of sides EF and DE of an
equilateral triangle, and line AB meets the circumscribing circle at C,
then AB/BC = AC/AB = φ. Odom used this fact to construct a pentagon,
which H.S.M. Coxeter published in the American Mathematical Monthly
with the single word “Behold!”
credit: Greg Ross
http://www.futilitycloset.com/2013/11/02/gold-nuggets/
Image: Wikimedia Commons