1.	If and form a linear pair and find
		A.	96	B.	86
		C.	106	D.	76
		Hint
	2.	Which statement explains why
		A.	Angles complementary to the same angle or to congruent angles are congruent.
		B.	All right angles are congruent.
		C.	Angles adjacent to the same angle or to congruent angles are congruent.
		D.	Vertical angles are congruent.
		Hint
	3.	Which statement explains why
		A.	If the sum of the measures of two angles is 180, then they are supplementary.
		B.	Angles supplementary to the same angle are congruent.
		C.	If two angles form a linear pair, then they are supplementary.
		D.	All right angles are congruent.
		Hint
	4.	Two angles are congruent if they are ______.
		A.	supplementary	B.	adjacent
		C.	vertical	D.	a linear pair
		Hint
	5.	If and form a linear pair and m = 72, find m.
		A.	72	B.	144
		C.	18	D.	108
		Hint