Respuesta :
Answer:
129
Step-by-step explanation:
All the angles have to add up to 360.
1 line equals 180
180-51= 129
-- the angle opposite 51 also equals 51
-- x = 129
- so the angle opposite the x (129) equals 129 as well
Answer:
129
Step-by-step explanation:
All the angles have to add up to 360.
1 line equals 180
180-51= 129
-- the angle opposite 51 also equals 51
-- x = 129
- so the angle opposite the x (129) equals 129 as well