1.	Classify the angle whose measure is 100°.
		A.	acute	B.	obtuse
		C.	right	D.	straight
		Hint
	2.	The sum of the measures of the angles of a regular octagon is 1,080°. Find the measure of one of its angles.
		A.	108°	B.	90°
		C.	120°	D.	135°
		Hint
	3.	Classify the given angle.
		A.	complementary	B.	acute
		C.	obtuse	D.	right
		Hint
	4.	Find the sum of the measures of the interior angles of the polygon.
		A.	720°	B.	360°
		C.	1080°	D.	540°
		Hint
	5.	Find the sum of the measures of the interior angles of this polygon.
		A.	900°	B.	540°
		C.	180°	D.	360°
		Hint