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π:2
:2
2:π
1:1
12,6
6,8
9,12
12,9
20
30
24
25
41
42
40
38
2:3
3:2
3:4
1:7
21
35
144°
150°
152°
160°
1:3
2:5
3:5
4:7
125
175
375
395
2/3
5/3
1/6
5/6