Answer: X equals B.
Step-by-step explanation: all the degrees in a triangle add to be 180, so add up the given angles and subtract from 180 to get the missing angle.
Answer:
D
Step-by-step explanation:
(180° - 105°) + 55° + x = 180°
75° + 55° + x = 180°
x + 130° = 180°
x = 180° - 130°
x = 50°
I hope I helped you.
