Answer:
x = 37°
Step-by-step explanation:
the sum of the exterior angles of a convex polygon is 360° so the sum of all the angles must yield to 360°.
just a trial!!!!!
x+2x+x+10+x+18+3x+x-1=360°
9x=333
x= 37°
x=37 degrees
9x + 27 = 360
- 27
9x =333
x= 333/9
x= 37
Hope this helps!
