11 Jun
2003
11 Jun
'03
12:29 a.m.
You wrote:
If there is an equilateral polygon with vertices in Q^2, it can be scaled so that its vertices are in Z^2.
If such a polygon has sides of even length, they can be halved (as any Pythagorean triangle with an even hypotenuse has even legs).
What if the sides are irrational?