Consider 9 dots arranged in a three by three square. Connect all these 9 points with four lines without lifting your pen from the paper.

(In reply to Solution by Justin)

first start at g and go up past a then go down at a diagonal through b and f not stopping till on the same line as i, then go through i all the way to g then through g e and c, you will end up making a right triangle and bisecting it.

Posted by Sandra on 2003-02-16 11:52:53