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A water sprinkler can water plants in circular region with diameter 7 m. It takes 1 hour to completely water the region. Find out how much part of the region will get watered in 45 minutes.

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A water sprinkler can water plants in circular region with diameter 7 m. It takes 1 hour to completely water the region. Find out how much part of the region will get watered in 45 minutes.




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