1.	A 14-foot ladder that is placed 5 feet from the base of the vertical rock wall just reaches the top of the entrance of the cave. How high is the cave entrance above the ground?
		A.	about 14.9 feet	B.	about 6.2 feet
		C.	about 9 feet	D.	about 13.1 feet
		Hint
	2.	For safety reasons, the base of a 26-foot ladder should be at least 8 feet from the wall. How high can a 26-foot ladder safely reach?
		A.	about 24.7 feet	B.	about 18 feet
		C.	about 27.2 feet	D.	about 22.6 feet
		Hint
	3.	A 9-foot ladder is placed 4 feet from the base of a building. How high does the ladder reach?
		A.	about 7 feet	B.	about 5 feet
		C.	about 8.1 feet	D.	about 9.8 feet
		Hint
	4.	Sabrina's flying disc was stuck in a tree. In order to get the flying disc down, she used a 25-foot ladder positioned 8 feet from the base of the tree. How high was the flying disc?
		A.	about 23.7 feet	B.	about 68.7 feet
		C.	about 17 feet	D.	about 33 feet
		Hint
	5.	Which of the following are Pythagorean triples?
		A.	9, 12, 15	B.	7, 9, 11
		C.	10, 12, 16	D.	6, 12, 13
		Hint