When looking closely at the trigonometry table a student notices that certain sine values are the same as certain cosine values (partial table shown). What do the angles that have the same value have in common?

Degree
Sine
10
0.1736
9
0.1564
8
0.1392
7
0.1219
6
0.1045
5
0.0872
4
0.0698
3
0.0523
2
0.0349
1
0.0175
0
0.0000

Degree
Cosine
80
0.1736
81
0.1564
82
0.1392
83
0.1219
84
0.1045
85
0.0872
86
0.0698
87
0.0523
88
0.0349
89
0.0175
90
0.0000