Answer:
C = 50.24
A = 7,925.540864 (Round to whatever you want)
Step-by-step explanation:
c = 2πr
c = 2(3.14)(8)
c= 50.24
A = πr^2
A = (3.14)(50.24)^2
A = 7,925.540864
Can you translate so I can help you out

180 degress because a stranight angle equals that
I think that the missing value is 16m.
I just multiplied two other numbers with 20 and 20 x 16 x 16 = 5120
I hope this was right.
So if you means 33-55=-22
-22/11=x
so when dividing by a negative, just divide as usual, but just make the answer negative so
-22/11=22/11 times -1/1=2 times -1=-2
the answer is -2