[masraum]

You travel in a straight line for a given distance A, make a 90* turn to the left, travel in a straight line of length A, make a second 90* turn to the left, and then after travelling in a straight line of length A you find that you've arrived back at your starting point and arrived at a point 90* off from the direction you initially left. So you travelled 3 straight lines that made 90* angles to the each other. That means that you travelled in a triangle, except that the sum of the three angles is 270*.

What's the deal?

Not terribly difficult but still interesting to think about. Anyone got another??