Answer:
x=27⁰
Step-by-step explanation:
Determine all inner angles in that polygon:
180-(x+50)=130-x;
180-4x;
180-(2x+40)=140-2x;
180-3x;
The sum of all these angles is 360
(130-x)+(180-4x)+(140-2x)+(180-3x)=360
130+140-10x=0
10x=270
