(In reply to
re(7): Part I  notation by Richard)
The question does not ask for proof of the converse but since Richard asks...
If n is even, then it is easy to see that a square can be divided into n/2 equal rectangular stripes and each of these can be halved by a diagonal to give n triangles of equal area.

Posted by goFish
on 20060205 15:09:57 