1.	The common endpoint of two rays is called a(n)
		A.	angle	B.	vertex
		C.	degree	D.	side
		Hint
	2.	Use a protractor to measure .
		A.	100	B.	65
		C.	180	D.	115
		Hint
	3.	Classify the given angle.
		A.	right	B.	straight
		C.	obtuse	D.	acute
		Hint
	4.	Classify the given angle.
		A.	acute	B.	right
		C.	obtuse	D.	straight
		Hint
	5.	A skateboarding ramp is constructed with an angle of elevation of 40°. Classify this angle.
		A.	obtuse	B.	acute
		C.	right	D.	straight
		Hint