Answer:
104°
Explanation:
In order to find out the value of x we must figure out the other angles. The line on the extended side adds up to 180 degrees. Use that information to find the other angle.
180 - 128 = 52
The one angle is 52. Then, we know that a triangles angles always add up to 180 degrees as well. So create an equation:
180 - 52 - 24 = 104