Respuesta :
Answer:
72°
Step-by-step explanation:
Supplementary angles add up to 180
Angle X + Angle Y = 180
Angle X + 108 = 180
Angle X = 180 - 108
Angle X = 72°
Answer:
72°
Step-by-step explanation:
Supplementary angles are those that add up to 180 degrees. Here, since we know that x and y are supplementary, we can add them together and set them equal to 180:
x + y = 180
Now, we already know that ∠y = 108°, so plug this in:
x + 108 = 180
x = 180 - 108 = 72°