What does it mean to bisect something? What is a midpoint?
Write down your definitions of bisect and midpoint. Give an example.
Draw three triangle (of the same type). Have a ruler and a protractor handy
Draw all of the angle bisectors (if you do not have a protractor – estimate)
What do you notice?
Draw all of the perpendicular bisectors of the sides.
What do you notice?
Draw all of the medians (segment from an angle to the midpoint of the opposite side)
What do you notice?
Go to Watch (Centers of Triangles)