Answer:
Step-by-step explanation:
The sum of interior angles is 180(n-2) where n=number of sides. In this case there are 8 sides so the sum of angles is
180(8-2)=1080 degrees. Now can solve for x
5x+4x+138+116+132+126+134+123=1080
9x+769=1080
9x=311
x=34.6
