Answer:
1. 120 degrees
2. 156 degrees
Explanation:
We can use the formula
![a=([(180(n-2)])/(n)](https://img.qammunity.org/2024/formulas/mathematics/high-school/fyevtwaxgxr0heq424qjwfwkwzfkbj2b2r.png)
Where n is the number of sides so we just fill in the formula
1. For the first shape it has 6 sides so we can put 6 as n in the formula

Now simplify using pemdas

2. For the second one we do the same thing but put 15 as n since it has 15 sides

Hope this helps please let me know if you have questions