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P
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BO
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102
B
A
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30° 35°65°
60°
103
70°
20°
75°
25°
48°
52°
35° 55°
60° 120° 68° 112°
104
100°
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45°
135°
50°
45°
65°105°
110°
130°50° 45°
105
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106
B C
A O D
107
140°
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108
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