Geometry 1.5.3 Bisect This (Part 4)

1.5.3 (Part 3)
1. Angle ABC is dynamic. You can move point A so that the angle can move between 0 and 360 degrees.[br]Use your construction tools (compass and straightedge -- the tools in this applet) to construct the angle bisector of angle ABC.[br][br]2. Verify your work is correct by measuring angles CBD and DBA and doing a drag test. (This assumes you label your angle bisector as ray BD.)

Information: Geometry 1.5.3 Bisect This (Part 4)