1°

(a)  

2

(a)  

2°

(a)  

3

(a)  

3°

(a)  

4

(a)  

5°

(a)  

6

(a)  

9°

(a)  

9

(a)  

12

(a)  

16

(a)  

18°

(a)  

20°

(a)  

22

(a)  

27

(a)  

30°

(a)  

100

(a)  

50

(a)  

80°

(a)  

71

(a)  

62

(a)  

99

(a)  

64

(a)