Respuesta :
The value of X is 39 degrees. You have to add 102 degrees and 39 degrees to get 141 degrees. All triangles equal up to 180, so subtract 141 from 180, and you get 39 degrees.
Answer:
39
Step-by-step explanation:
add 39 and 102 together you get 141. then subtract that by 180 you get -39, just forget about the negative and your answer is 39