Answer:
x = 66°
Explanation:
First, you can use exterior angle theorem to say that
and you can substitute to get:
105° = 39° + m<DJI
m<DJI = 66°
m<DJI and m<AJF are vertical angles, so they equal each other:
m<DJI = m<AJF
m<AJF = x = 66°
3.4m questions
4.3m answers