Angle Bisector
ABCD is a parallelogram, and BE is the bisector of angle B. BE intersects line CD at point F.
Draw the bisector of the exterior angle of ABC. This bisector intersects line DA at point G, and line DC at point H. Draw this figure.
What relationships do you observe? Transform ABCD into a rectangle. Do the relationships from your first observations hold?
Submit your idea for an investigation to InterMath.
