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Thursday, July 15, 2010

A Simple Geometric Quickie

Viviani's Theorem:

http://www.futilitycloset.com/2010/06/13/vivianis-theorem/

1 comment:

Alexander Bogomolny said...

I am aware of two proofs

http://www.cut-the-knot.org/Curriculum/Geometry/Viviani.shtml

http://www.cut-the-knot.org/Curriculum/Geometry/VivianiPWW.shtml

What do you have in mind? I'd be happy to learn there is a third one.