you might have an error on the page at 2:09. you show at the bottom that the distance would be 0.8 MIL, but what you show it 0.9 MIL. you would need to paint the dotted line from the points on the line of both dots and not from the center of the top dot.
A shout out to the UA-camr who commented on an cut-and-paste error I made! Thanks!!!!!
you might have an error on the page at 2:09. you show at the bottom that the distance would be 0.8 MIL, but what you show it 0.9 MIL. you would need to paint the dotted line from the points on the line of both dots and not from the center of the top dot.
Thanks for catching my error and letting me know. Much appreciated. I hate making errors!