1.	A stop sign casts a shadow 8 meters long, while a bush nearby casts a shadow 4.5 meters long. If the stop sign is 3.2 meters high, how tall is the bush?
		A.	11.3 meters	B.	1.8 meters
		C.	5.7 meters	D.	4.3 meters
		Hint
	2.	A staff's shadow is 8 feet and a tree's shadow is 16 feet. If the staff is 9 feet tall, how tall is the tree?
		A.	18 ft	B.	15 ft
		C.	12 ft	D.	9 ft
		Hint
	3.	A lamppost has a shadow that is 2 m long. A street sign has a shadow that is m long. If the street sign is 2 m tall, how tall is the lamppost?
		A.	m	B.	5 m
		C.	3 m	D.	1 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.	17.5 feet	B.	30 feet
		C.	7.5 feet	D.	25 feet
		Hint
	5.	The two triangles shown in the figure are similar. Find the distance d across the river.
		A.	16 meters	B.	81 meters
		C.	25 meters	D.	18 meters
		Hint