Quadrilaterals on the Beach
Another pleasant way to pass the time at the sea: assembling a family of quadrilaterals!
New York Times Learning Network: Symmetry and Soccer Balls
My latest contribution to the New York Times Learning Network’s 15-Minute Lesson Plan series was inspired by Siobhan Roberts’s wonderful article on the geometry of the soccer ball. The Learning Network article is freely available Read more
3 Comments
Nikita Zolotykh · February 7, 2011 at 5:58 pm
Now which one of them is cyclic…
MrHonner · April 1, 2011 at 6:56 pm
I think two of them are cyclic.
Jakeb · March 18, 2013 at 1:44 pm
Those are not quadrilaterals…. they are 3 dimensional