1.	A lakefront building that is 30 feet high casts a shadow on the water. How long is that shadow if a 16-foot high truck parked nearby casts an 8-foot shadow?
		A.	9 ft	B.	13 ft
		C.	15 ft	D.	12 ft
		Hint
	2.	A tower cast a 30-foot shadow. At the same time, a person who is 6 feet tall casts a 4-foot shadow. How tall is the tower?
		A.	34 feet	B.	48 feet
		C.	47 feet	D.	18 feet
		Hint
	3.	Kim is standing next to a tree. The tree has a shadow that is 3 m long. Kim, who is 1.3 m tall, has a shadow that is 0.8 m long. How tall is the tree?
		A.	4.875 m	B.	1.846 m
		C.	3.972 m	D.	3.5 m
		Hint
	4.	An office building casts a shadow that is 15 feet long. A nearby tree casts a shadow that is 2.5 feet long. If the tree is 5 feet tall, how tall is the office building?
		A.	30 feet	B.	25 feet
		C.	7.5 feet	D.	17.5 feet
		Hint
	5.	The two triangles shown in the figure are similar. Find the distance d across the river.
		A.	81 meters	B.	18 meters
		C.	16 meters	D.	25 meters
		Hint