![](https://live.cdn.renderosity.com/forum/_legacy/file_118397.jpg)
thanx Wabe for your words... cube have 6 faces...no doubt, but in 3d one face is made from 3 points (vertex) in 2d space, so a cube face have 4 point for every "real cube face" but in 3d to make a face with 4 point you need 2 "face" with 3 points... !!! wow my poor, bad english... hope the draw is more clear... ;)