1.	Which figure is not a polygon?
		A.		B.
		C.		D.
		Hint
	2.	The polygon shown is_______.
		A.	regular	B.	concave
		C.	a hexagon	D.	a quadrilateral
		Hint
	3.	What is the measure of an interior angle of a regular 9-gon?
		A.	140	B.	144
		C.	147	D.	135
		Hint
	4.	Find the value of x.
		A.	46.5	B.	12.75
		C.	35.25	D.	24
		Hint
	5.	What is the value of x in the figure?
		A.	120°	B.	297°
		C.	151°	D.	117°
		Hint