1.5.3 Bisect This (Part 3)
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.
Use your construction tools (compass and straightedge -- the tools in this applet) to construct the angle bisector of angle ABC.
2. You will work with a partner. You will draw this in front of your partner. You must explain each move to your partner and why you think it is a correct part of the construction.
3. Your partner (and when you switch roles, you) will listen carefully to the explanation given. If you disagree, discuss your thinking and work to reach an agreement.
4. 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.)