sin(70)/sin(39) = 0.8029615959688345 if the angles are in radians
sin(70)/sin(39) = 1.4931863549155849 If the angles are in degrees
The answer is not an angle so I do not know what you mean
Sorry I didn't realise that the forum calc was set, by default) to radians.
Thanks for pointing this out to me Hectictar ;)