1.	Identify an altitude in .
		A.		B.
		C.		D.
		Hint
	2.	In , which segment is not an altitude?
		A.		B.
		C.		D.
		Hint
	3.	Given the diagram of ACE, identify an altitude.
		A.		B.
		C.		D.
		Hint
	4.	In MOP, O MPO, mM = 40 and is an altitude. Find mNPO.
		A.	30	B.	70
		C.	90	D.	20
		Hint
	5.	is an altitude of ABD, find m1.
		A.	90	B.	180
		C.	40	D.	140
		Hint