Chiliagon

A chiliagon or 1000-gon is a shape with 1000 sides and 1000 corners.
Regular chiliagon.
A "regular chiliagon" is represented by Schläfli symbol {1000} and can be constructed as a truncated 500-gon, t{500}, or a twice-truncated 250-gon, tt{250}, or a thrice-truncated 125-gon, ttt{125}.
Area.
The amount of space a regular chiliagon takes up is
"a" is the length of one of its sides.