1.	Which pair of triangles is similar?
		A.
		B.
		C.
		D.
		Hint
	2.	and are similar. Find b if x = 15, y = 6, and a = 7.5.
		A.	3	B.	12
		C.	6	D.	7.5
		Hint
	3.	and are similar. The ratio of to is Find if is 12.
		A.	16	B.	12
		C.	9	D.
		Hint
	4.	A tree that is 5 feet tall casts a shadow 2 feet long. A nearby building casts a shadow that is 20 feet long. How tall is the building?
		A.	20 ft	B.	0.5 ft
		C.	50 ft	D.	10 ft
		Hint
	5.	Which of the following is not necessarily true concerning similar triangles?
		A.	The measures of their corresponding sides are equal.
		B.	The measures of their corresponding angles are equal.
		C.	Each triangle has angles whose sum is 180°.
		D.	The measures of their corresponding sides are proportional.
		Hint