SOLUTION: We walk 5,5 radians around a circular lake. What is the area of the lake if our walk is 11km long?

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Question 921660: We walk 5,5 radians around a circular lake. What is the area of the lake if our walk is 11km long?
Answer by Alan3354(69443) About Me  (Show Source):
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We walk 5,5 radians around a circular lake. What is the area of the lake if our walk is 11km long?
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r = 11/5.5 = 2 km
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Area+=+pi%2Ar%5E2