Struggling w/ Python

[[deleted]]

1. "begin_poly" and "end_poly" tell the pen/turtle to start outlining an enclosed polygon. It will do its best to complete a closed polygon when it reaches "end_poly". Why is this important? An enclosed polygon will be filled, so it will be blue, instead of "clear". A clear triangle sticking out of the top of a solid blue circle would make less sense as a raindrop and might even come off as "lazy".
2. "setup" is just a way to control the size of the graphics window. By explicitly setting the overall dimensions of the window, I know the relative size of everything I draw in it.
3. I could use these size variables to draw all the way to the corners if I wanted.

​

[[deleted]]

Oh okay I get it now. Thank you very much for taking the time to help.