1st. Going clockwise,
Sin=Cos/Cot
Cos=Cot/Csc
Cot=csc/sec
Csc=sec/tan
Sec=Tan/Sin
Tan=sin/cos
2nd. going counterclockwise:
Sin=Tan/sec
Tan=Sec/csc
Sec=Csc/cot
...
3rd. Going diagonal:
Sin=1/Csc and csc= 1/Sin
Cos=1/sec and sec=1/ cos
tan=1\cot and cot= 1/tan
4rth going down the triangles.
Sin^2 + Cos^2 = 1^2
Tan^2 + 1^2 = SEC^2
1^2 + cot^2 = csc ^2
and that's it...
