MAA Found Math for the Week of September 17, 2012
Japheth Wood (Bard MAT Program) sent us this photo with the following description. "Here's a photo I took last night while on my way to the Museum of Math Math Encounters talk at Baruch College. It looks like a Proof Without Words proof of the Theorem of Pythagoras that someone has thrown in the trash."
See math in the world around you? Send your photos to firstname.lastname@example.org.