Search it up on google and it should come out
Answer:
159degrees.
Step-by-step explanation:
It is both equal b y length.
Theres no complication in it.
Than you check this line of terms
1. 80=160/2
2. 40=80/2
3. 20=40/2
4. 10=20/2
5. 5=10/2
6. 2 1/2 = 5/2 so what mean that choice c. is right sure
hope this will help you