Section		Problems
9.1		#1, 3-6, 7 (acute or obtuse only; not angle measure), 8, 11-13, 15-17, 19, 20, 22, 23
9.2		#1-9, 11-14, 16-19
9.3		#1-10, 12-15, 18-21, 23, 24, 26, 27, 30
9.4		#1-11, 14, 15, 17, 18, 22, 27-30
9.5		#1, 3-10, 12, 13
10.1		#1-5, 7-14, 16, 18, 20-24
10.2		#2-5, 7-12, 14-16, 18-21, 27-30
10.3		#1-9, 11-18, 20, 21, 23, 29, 30
10.4		#1-13, 15, 31, 32
10.5		#1-12, 15, 17-19, 31
11.1		#1, 2, 4-9, 12, 14, 15, 18-29
11.2		#1, 3-12, 14, 15, 18, 19, 21, 23, 24, 26, 28, 31-34, 36, 39, 41
11.3		#1-3, 5-11, 14, 20, 22-24, 28-33, 35, 36, 39, 42-44
11.4		#1-15, 17, 18a, 18b, 19, 21-23, 28-31
11.5		#1-8, 11-16, 18, 19, 21, 22, 25, 26, 28, 29, 34-36, 38, 39, 41, 44, 50-53
12.1		#1, 2, 3b, 4-10, 12, 15-17, 19-21, 26
12.2		#1-6, 9-11, 13, 14, 25-29
12.3		#1-4, 6-9, 11
12.4		#1-9, 12-14, 19, 20
12.5		#1-6, 11-13