Confirm line segments in big/small angle trisections

Author:
wetzelsjoh
Topic:
Angles
This is an example I used to confirm angle trisection of angles big and small. Pull pt. B around to view results of line segments i1, j1, and k1 compared length of l1. (How far out will decimal place go in Geogebra?) Most circles, line segments and points used to create this view are hidden so as to observe just the above line segments.