GoldShadow, you've actually made quite a leap from your geometrical analysis to one of limits, which usually isn't covered until early Calculus.
You found the formula for the circumference of a shape with an arbitrary number of sides, which is pure geometry. But think about what happens as you get more and more sides to a shape - think of a square, then a pentagon, then a dodecagon (10 sided). As you add more sides you get more and more circular in appearance. It would then stand to reason that, with an infinite number of sides, you would have a circle (well, very very close to one). And what's the perimeter/circumference of a circle with radius 1? 2Pi.
For more information, look
hereLet this be a lesson to you all - Math is beautiful. And for those of you who have watched Pi, how about the Golden Spiral? Man, that's something to mess with your head. For anybody else who's interested, do a google search for "Golden Ratio" or "Golden Spiral". I'd link to some, but most of them have waaaay too much math for most people to take.
Another lesson to learn is that I'm a geek and don't have Zelda yet, so I have time to talk about math