I'm modeling something using Google Sketch-Up (easy to use, free, 3d modeling program) and I would like to keep figures as simple as possible to save computer memory. I have little doubt that it takes more space to store a twelve sided figure than it does for a 4 sided figure, but what I'm really curios about is a circle.

Circles theoretically have an infinite number of sides, or for practical purposes, only one side. I wonder if the computer treats a circle as a polygon with 100 sides or so (in other words not a true circle). This would make the shape very difficult to store.

So, to sum it all up, is my logic correct that a circle takes up greater memory on a computer than a square?
Pappy, it's in 3d so it's not just pixels and colors that the computer cares about

Malakai, I would actually be dealing with a cylinder, so essentially it's just a long circle, and not a sphere.

Thank you all, I've learned alot.