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Mathematics 18 Online
OpenStudy (anonymous):

A cylinder-shaped barrel has a diameter of 3 feet and a height of 4.5 feet. If the barrel is empty, which is closest to the minimum amount of water needed to completely fill the barrel?

OpenStudy (gebooors):

Volume of barrel is area of circle * height. Area of circle is pi* radius^2 Radius is 0.5 * diameter

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