SOLUTION: A large, irrigated crop circle is 400 meters in radius. Correct to the nearest tenth of a hectare, how many hectares of land are contained in this circle.

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Question 232659: A large, irrigated crop circle is 400 meters in radius. Correct to the nearest tenth of a hectare, how many hectares of land are contained in this circle.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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A large, irrigated crop circle is 400 meters in radius. Correct to the nearest tenth of a hectare, how many hectares of land are contained in this circle.
A = pi%2Ar%5E2
A = pi%2A400%5E2
A = 502654.8246 sq/meters
:
We know a hectare is 10,000 sq/meters
+502654.8246%2F10000 = 50.3 hectares