Answer:
x = 150
Step-by-step explanation:
The regular poligon shown in the image has 12 angles so it's a dodecagon
A dodecagon's interior angles is calculated with the following formula:
(n-2)180 (n is the count of angles)
10*180 = 1800 now this is the sum of all 12 angles' measure to find the value of x we divide this sum by 12
1800/12 = 150 this is the value of x
