1.	Which figure shows altitude ?
		A.		B.
		C.		D.
		Hint
	2.	In , is a(n)________.
		A.	altitude	B.	angle bisector
		C.	perpendicular bisector	D.	median
		Hint
	3.	One of the altitudes of is _________.
		A.		B.
		C.		D.
		Hint
	4.	Given the diagram of ACE, identify an altitude.
		A.		B.
		C.		D.
		Hint
	5.	is an altitude of ABD, find m1.
		A.	140	B.	90
		C.	180	D.	40
		Hint