User talk:Etodemerzel

$[asy] import three; unitsize(1cm); size(6cm); currentprojection=orthographic(1/2,-1,1/2); /* three - currentprojection, orthographic */ draw(surface((0,0,0)--(1,0,0)--(1,1,0)--(0,1,0)--cycle),red+opacity(0.3)); draw((0,0,0)--(0,0,1)); draw((0,1,0)--(0,1,1)); draw((1,1,0)--(1,1,1)); draw((1,0,0)--(1,0,1)); draw((0,0,1)--(1,0,1)--(1,1,1)--(0,1,1)--cycle,green);[/asy]$