1.	In is the _____.
		A.	perpendicular bisector	B.	all of these
		C.	median	D.	altitude
		Hint
	2.	A _________ is a line or segment that passes through the midpoint of a side of a triangle and is perpendicular to that side.
		A.	angle bisector	B.	perpendicular bisector
		C.	mode	D.	median
		Hint
	3.	has vertices X(-1, 1), Y(3, 9), and Z(6, -2). Determine the coordinates of point W on so that is a median of
		A.	(2, -1)	B.	(2, 4)
		C.	(1, 5)	D.
		Hint
	4.	In which picture is an angle bisector?
		A.		B.
		C.		D.
		Hint
	5.	The __________ is the point of concurrency of the angle bisectors of a triangle.
		A.	centroid	B.	circumcenter
		C.	incenter	D.	orthocenter
		Hint