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Cool Down: 1.5.3 Bisect This (Part 4)

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. Label a point on your angle bisector as point D. 2. Verify your work is correct by measuring angles CBD and DBA and doing a drag test.