Answer:
x = 124°
Step-by-step explanation:
The polygon given is a 7-sided polygon with 7 interior angles.
Sum of all 7 interior angles of the polygon = (n - 2)*180, where n = 7, we would have the following equation:
131° + 131° + 126° + 118° + 134° + 136° + x° = (7 - 2)*180
776 + x = 900
Subtract 776 from each side
x = 900 - 776
x = 124°
