The following details mathematical relationships around the anomalies in Cydonia, Mars, known to some as the "coathanger" and "trailer park", shown below.
Copyright © 1998 by Malin Space Science Systems, Inc.
In this discussion I will outline various features
in the area and work with those outlines. This will make loading pages
easier. Those who want to download the NASA original photos can do so here.
I would recommend spending the time to use the best resolution version,
preferably the .tiff files as compression in the photos may introduce distortion
which may hide the points I'm making here. You may like to compare the
maps following to confirm to yourself you can see all the marks.