Answer:
The answer is 1251, the remainder is 3.
Step-by-step explanation:
Answer 9.26
Step-by-step explanation:
5.9/2=2.95x3.14=9.263=9.26

Message me if you're confused. I might have wrote this down a little weird.
Answer:
∠1 and ∠3
∠1 and ∠4
∠2 and ∠3
∠2 and ∠4
Step-by-step explanation:
Adjacent angles have a common side and a common vertex