1.	All right angles are ____________.
		A.	congruent	B.	complementary
		C.	180°	D.	transitive
		Hint
	2.	If and form a linear pair and find
		A.	86	B.	96
		C.	76	D.	106
		Hint
	3.	In the figure shown, is complementary to and is complementary to . Which statement is true if none of the measures of the angles equal 45?
		A.	is complementary to .	B.
		C.		D.	is complementary to itself.
		Hint
	4.	If and are vertical angles and and find
		A.	68	B.	72
		C.	43	D.	23
		Hint
	5.	Which statement explains why
		A.	If two angles form a linear pair, then they are supplementary.
		B.	All right angles are congruent.
		C.	Angles supplementary to the same angle are congruent.
		D.	If the sum of the measures of two angles is 180, then they are supplementary.
		Hint