SOLUTION: Circle A has a circumference of 8π. The radius of circle B is twice the radius of circle A. What is the area of circle B? A) 8π B) 32π C)64π D)256π

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Question 1141787: Circle A has a circumference of 8π. The radius of circle B is twice the radius of circle A. What is the area of circle B?
A) 8π
B) 32π
C)64π
D)256π
Answer by josgarithmetic(39615) About Me  (Show Source):
You can put this solution on YOUR website!
A:
2pi*r=8pi
r=8%2F2
r=4

B:
pi%282%2A4%29%5E2
64pi------------------choice C.