Well since I was unable to get the actual survey plans ( I also spent 8 and 1/2 years in surveying so am very well aware of precision) a protractor on an exact map of an area is more than good enough. You too are only guessing at the angles unless you have the legal surveys showing the bearings and actual angles involved.
As I have said before you have a real attitude problem and much of your work will be ignored because of it. Your tunnel vision will be your undoing. One day however you hopefully will see the light and it will all become really clear to you.
Believe it or not there is always more than one path to the solution to ANY puzzle.
So WOW to you too.