1.	In is the _____.
		A.	all of these	B.	median
		C.	altitude	D.	perpendicular bisector
		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.	median	B.	angle bisector
		C.	perpendicular bisector	D.	mode
		Hint
	3.	In which figure is a median and an angle bisector of and is an altitude?
		A.		B.
		C.		D.
		Hint
	4.	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.		B.	(2, -1)
		C.	(1, 5)	D.	(2, 4)
		Hint
	5.	The __________ is the point of concurrency of the angle bisectors of a triangle.
		A.	orthocenter	B.	centroid
		C.	circumcenter	D.	incenter
		Hint