This figure is made up of two rectangular prisms.

What is the volume of the figure?

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ft³
Three-dimensional figure that could be formed by placing a smaller rectangular prism on top of a larger rectangular prism such that the widths of the prisms are the same. The larger bottom prism has a length of 19 feet, a width of 12 feet, and a height of 6 feet. The smaller top prism has a length of 10 feet and a height of 3 feet.

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To find the volume of the figure made up of two rectangular prisms, we need to calculate the volume of each prism separately and then add them together.

  1. Volume of the larger rectangular prism:

    • Length = 19 feet
    • Width = 12 feet
    • Height = 6 feet

    Volume of a rectangular prism is calculated using the formula: \[ V = \text{Length} \times \text{Width} \times \text{Height} \] Substituting the dimensions of the larger prism: \[ V = 19 \times 12 \times 6 \] \[ V = 228 \times 6 = 1368 \text{ ft}^3 \]

  2. Volume of the smaller rectangular prism:

    • Length = 10 feet
    • Width = 12 feet (same as the larger prism since they share the same width)
    • Height = 3 feet

    Using the same volume formula for the smaller prism: \[ V = \text{Length} \times \text{Width} \times \text{Height} \] Substituting the dimensions of the smaller prism: \[ V = 10 \times 12 \times 3 \] \[ V = 120 \times 3 = 360 \text{ ft}^3 \]

  3. Total volume of the figure: Now, we add the volumes of both prisms: \[ \text{Total Volume} = \text{Volume of larger prism} + \text{Volume of smaller prism} \] \[ \text{Total Volume} = 1368 + 360 = 1728 \text{ ft}^3 \]

Thus, the total volume of the figure is: \[ \boxed{1728} \text{ ft}^3 \]

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