Question: A water reservoir is shaped like a rectangular solid with a base that is 40 yards by 40 yards, and a vertical height of

A water reservoir is shaped like a rectangular solid with a base that is 40 yards by 40 yards, and a vertical height of 20 yards. At the start of a three-month period of no rain, the reservoir was completely full. At the end of this period, the height of the water was down to 5 yards. How much water was used in the three-month period? How much water was used in the three-month period?

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