1.	In the figure, °. Find
		A.	45°	B.	120°
		C.	90°	D.	30°
		Hint
	2.	Classify the angle whose measure is 100°.
		A.	obtuse	B.	right
		C.	straight	D.	acute
		Hint
	3.	The sum of the measures of the angles of a regular octagon is 1,080°. Find the measure of one of its angles.
		A.	90°	B.	120°
		C.	135°	D.	108°
		Hint
	4.	Find the sum of the measures of the interior angles of the polygon.
		A.	720°	B.	360°
		C.	540°	D.	1080°
		Hint
	5.	Find the sum of the measures of the interior angles of this polygon.
		A.	900°	B.	180°
		C.	540°	D.	360°
		Hint