Oblique Triangles Trigonometry
A
b side
c side
C B
a side
Unknown Known Formula        
             
C A -B 180deg - (A + B)  
b a-B-A (a x sin B) / sin A  
c a-A-C (a x sin C) / sin A  
tan A a-C-b (a x sin C) / (b - (a x cos C))  
B A-C 180deg - (A + C)  
sin B b-A-a (b x sin A) / a  
A B-C 180deg - (B + C)  
cos A a-b-c (b square + c square - a square) / (2 x b x c)
sin C c-A-a (c x sin A) / a  
cot B a-C-b ((a x cosecant C) / b) x cotan C  
c b-C-B b x sin C x cosecant B