1. Slide (a) around to make obtuse, acute, right, or straight angles.[br]2. Next use the Angle Bisector Tool and click on points A then B then A'[br]3. Next make a point on the line that was just created.[br]4. Then use the Angle Tool to measure angle ABC and angle A'BC[br]5. Move the slide tool to answer the following questions.
After using the Angle Bisector tool, write the definition of an angle bisector.
After you had completed steps 1-5 did you notice anything significant about angle ABC and angle A'BC?
How could you construct your own angle bisector on GeoGebra or by hand?