This image illustrating the Pythagorean Theorem was created by the artist Mel Bochner. It appears on the cover of the January 2009 issue of the College Mathematics Journal.

What is wrong with it?

For the answer, visit the 360 blog.

A blog about math, puzzles, teaching, and academic technology

Posted by: **Dave Richeson** | January 28, 2009
## What is wrong with this picture?

This image illustrating the Pythagorean Theorem was created by the artist Mel Bochner. It appears on the cover of the January 2009 issue of the College Mathematics Journal.

What is wrong with it?

For the answer, visit the 360 blog.

Posted in Math, Puzzle | Tags: College Mathematics Journal, Pythagorean Theorem

%d bloggers like this:

Very nice. Very common mistake, too – though I hadn’t before seen it in this context.

By:

Berton January 29, 2009at 7:39 pm

Very nice indeed—it was the folks at 360 who noticed it. The journal was sitting on my coffee table for a week and I never gave the cover a second look.

By:

Dave Richesonon January 30, 2009at 12:14 am