Volume of a Rectangular Solid - Pre-Algebra

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Question

Alfred has a fish tank that looks like this:

Rectangle volumn

Alfred needs to fill the tank with water. To do that, he needs to know the volume of the tank. Find the volume of the tank if the height is 12 inches, the length is three times the height, and the width is the same as the height.

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Answer

The fish tankbis considered a rectangular prism. The formula to find the volume of a rectangular prism is

where l is the length, w is the width, and h is the height. We know the height is 12 inches. The length is three times the height, so the length is 36 inches. The width is the same as the height, sonthe width is 12 inches. Now, we can substitute. We get

Therefore, the volume of the fish tank is .

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