It’s Friday, and you want to give your brain a break for the week, right? Before you put your brain away for the weekend, try this brain teaser. I grant you, this has little to do with technical communication, however you might argue that it is an exercise in looking at things from multiple perspectives. Anyway, give your answer in the comments. First correct answer wins. I don’t know what you win. Respect, maybe. Or something non-tangible like that. Anyway, have a go and see what you come up with.
(Googling is cheating, just so you know. Remember the honor code?)
How many triangles can you find in the following diagram?
Hint: Drawing and using a highlighter to mark each triangle is helpful so you can be sure you don’t double-count or miss one.
Updated 6/16/2010 – Here is the answer:
IP info: I created the image myself in Illustrator and the animation movie in Photoshop. Here is the license for both the image and the movie answer: 
(Triangle Image by Technically Speaking is licensed under a Creative Commons Attribution-Share Alike 3.0 United States License.)
6 Responses to Friday Brain teaser: Triangles