Hi DL,

I find geometry fascinating as well. Remember Geometry Proofs? Simplicity of arcs and lines does make beautiful buildings, strong too.

Your methods you are describing, make good sense. Here is where I see that. The method provides a rule for scribing. With a couple of trammel points and chalkline (or string and stakes) you can lay-out full scale for building with scribe techniques. Hell, This seems more fun than taking 6, 8, 10 with two tape measures with pencils "attached to the ends". Ya'll know what I'm talking about right?

Here are a couple that I have drawn with credit due to Mr. Hobson.

1. Making Perpendicular Lines.
2. Finding the Center of a Circle.