1.	Which figure is not a polygon?
		A.		B.
		C.		D.
		Hint
	2.	The polygon shown is_______.
		A.	concave	B.	regular
		C.	a hexagon	D.	a quadrilateral
		Hint
	3.	The polygon shown is
		A.	an octagon	B.	regular
		C.	concave	D.	a hexagon
		Hint
	4.	The measure of an interior angle of a regular polygon is 160. How many sides does the polygon have?
		A.	16	B.	18
		C.	20	D.	12
		Hint
	5.	Find the measure of .
		A.	75°	B.	140°
		C.	110°	D.	29°
		Hint