B. On a circular nature trail.
As Manny ended up at the same point from where he started after walking 3 miles, he walked in a circle.
Answer:
260
Step-by-step explanation:
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
