Answer:
D. 55
Step-by-step explanation:
First, you have to find the value of all the interior angles added together. There are 6 sides so you plug in 6 for the formula (n-2) x 180. the answer is 720. Now, add up all the interior angles shown and subtract it from 720. The answer is 125. This is the remaining interior angle and not x so you have to subtract 125 from 180. X = 55 degrees.
