SOLUTION: If the ratio of the area of circle A to the area of circle B is 2:1, then how many times larger is the circumference of circle A than the circumference of circle B? A) √2

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Question 1076440: If the ratio of the area of circle A to the area of circle B is 2:1, then how many times larger is the circumference of circle A than the circumference of circle B?
A) √2
B) 2
C) √3
D) 4
E) 5

Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!
A. The ratio of areas are related to r%5B1%5D%5E2%2Fr%5B2%5D%5E2+ while the ratio of circumferences are related to r%5B1%5D%2Fr%5B2%5D:
+r%5B1%5D%5E2%2Fr%5B2%5D%5E2+=+2+ --> r%5B1%5D%2Fr%5B2%5D+=+sqrt%282%29