Here's another.....Help..

Answer:
i think the answer is 16
Step-by-step explanation:
bc one side is 8 and the other side looks like its the same length but im not completely sure so don't trust me
Answer:
Diameter = 8
Radius = 4
Circumfrence = 2pi(r)
Circumfrence = 25.12
Half of the circumfrence = 12.56
Add 8: 20.56
Hope this helps!