1.	The measure of an interior angle of a regular polygon is 160. How many sides does the polygon have?
		A.	12	B.	20
		C.	18	D.	16
		Hint
	2.	An exterior angle of a regular polygon has a measure of 30. Find the sum of the measures of the interior angles.
		A.	2880	B.	2160
		C.	1800	D.	2520
		Hint
	3.	Find the sum of the measures of the interior angles of a 28-gon.
		A.	4680	B.	5040
		C.	167	D.	180
		Hint
	4.	The measure of an exterior angle of a regular polygon is 60. How many sides does the polygon have?
		A.	12	B.	9
		C.	3	D.	6
		Hint
	5.	The measure of an interior angle of a regular polygon is 140. Find the number of sides the polygon has.
		A.	9	B.	7
		C.	13	D.	11
		Hint