Question

which would you use to find the angle of C
picture posted below

Answer 1

\[\huge\rm sin = \frac{ o }{ h }~~cosine =\frac{ a }{ h }~~\tan = \frac{ o }{ a }\]
o= opposite
a= adjacent
h= hypotenuse

Answer 2

so if AB and BC r given
and you need to find angle c which one would you use cosine sin or tan ?