Question

I need to calculate J and don’t know how please help me

Answer 1

K is opposite to 47 so k is also 47. I is opposite to 39 so I is also 39. You add all of those together making it 172. You then subtract it from 360.
So 47+47+39+39=172
360-172=188
188 is both j and opposite j so divide 188 by 2 and you get 94.
J=94