Date: Jul 17, 2002 11:52 PM
Author: Steve Gray
Subject: Re: Trisection

Mark wrote:

[snip]

I just did a 5-minute check with Geometer's Sketchpad. In one
iteration (original directions only) it didn't do too well. My angle
was 75 degrees. My guess for placing D was BD/BA=0.292.
The angle E'OB comes out to be 25.562 degrees, 2% high.
I think my construction is correct because as the first guess
approaches 25 degrees, the construction result does also.
But I agree that further tweaks might make it much better.