1.	What is the measure of an interior angle of a regular 9-gon?
		A.	140	B.	135
		C.	144	D.	147
		Hint
	2.	The measure of an interior angle of a regular polygon is 160. How many sides does the polygon have?
		A.	20	B.	18
		C.	16	D.	12
		Hint
	3.	Find the value of x.
		A.	46.5	B.	24
		C.	12.75	D.	35.25
		Hint
	4.	Find the sum of the measures of the interior angles of a 28-gon.
		A.	5040	B.	4680
		C.	167	D.	180
		Hint
	5.	Find the measure of .
		A.	110°	B.	29°
		C.	75°	D.	140°
		Hint