1.	Which figure shows altitude ?
		A.		B.
		C.		D.
		Hint
	2.	One of the altitudes of is _________.
		A.		B.
		C.		D.
		Hint
	3.	Classify .
		A.	median	B.	perpendicular bisector
		C.	altitude	D.	all of these
		Hint
	4.	Given the diagram of ACE, identify an altitude.
		A.		B.
		C.		D.
		Hint
	5.	In MOP, O MPO, mM = 40 and is an altitude. Find mNPO.
		A.	90	B.	20
		C.	30	D.	70
		Hint