Answer:
72
Step-by-step explanation:
Answer:
you need to add and then subtract and the anw=sewr wi;l be 14567890 .happy and boom your done
Step-by-step explanation:
Answer:
See explanation
Step-by-step explanation:


Hope this helps!
Answer:
16.852
Step-by-step explanation:
All side lengths are the same in an octagon. What you do is take the diamater and multiply it by 0.383. Diamater is the radius doubled.