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References to 'sines law'
1. geometry as the study of invariants under certain transformations by rspuzio
2. proof of bisectors theorem by drini
3. proof of Morley's theorem by mathcam
4. proof of Steiner's theorem by mathcam
5. proof of tangents law by CWoo
6. triangle by Wkbj79
7. triangle solving by stevecheng