
<h3>hope it helps you if it does please mark me as brainliest :-)</h3>
Answer:
B
Step-by-step explanation:
I believe it is 14?
Please correct me if wrong
The formula is 180(n-2)= 1140 then you divide 1140 by 180 to get 8 so then it would like like n-2=8 add the 2 over and n (being the number of sides)= 10 so your answer will be 10