What side the planes flew into towers?

img206.imageshack.us...

What direction did the planes come from on this picture? Anyone know? :S

Reason i am asking is:

If the plane came in from 2 or 4 it would be less likely the core had alot of
damage done to it than when the plane flew in from 1 or 3.
Rectangular shaped core i mean...

[edit on 3-3-2007 by zren]

i think they hit side 1

[edit on 3-3-2007 by tombangelta]