Question

Pretty please, help. Will become fan.

Answer 1

i am pretty

Answer 2

Law of Sines!\[\frac{ a }{ \sin(A) }=\frac{ b }{ \sin(B) }=\frac{ c }{ \sin(C) }\]
In this specific case, try using the 1 side and the 2 angles you know to solve for the unknown angle:
\[\frac{ 12 }{ \sin(40) }=\frac{ e }{ \sin(55) }\]
Go ahead and finish it off !

I think Luis earned best answer though! :P

Answer 3

I got 14.18 is that what you got? @Pompeii00

Answer 4

I'm actually getting 15.29. I would re-check your input. You'd get a negative value here if you were in radian-mode, so I know you're good in degree-mode. I think you just mistyped something.