To determine the volume of the figure after dilation, we can follow these steps:
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Calculate the volume of the original figure. The volume \( V \) of a rectangular prism is given by the formula: \[ V = L \times W \times H \] where \( L \) is the length, \( W \) is the width, and \( H \) is the height.
For the given dimensions: \[ L = 10 , \text{cm}, \quad W = 8 , \text{cm}, \quad H = 6 , \text{cm} \] Thus, the volume of the original figure is: \[ V = 10 , \text{cm} \times 8 , \text{cm} \times 6 , \text{cm} = 480 , \text{cm}^3 \]
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Apply the scale factor for the dilation. When a three-dimensional figure is dilated by a scale factor \( k \), the volume of the new figure is given by: \[ V' = k^3 \times V \] where \( V' \) is the volume of the dilated figure and \( k \) is the scale factor.
In this case, the scale factor is \( k = 2 \). So: \[ V' = 2^3 \times 480 , \text{cm}^3 \] Calculating \( 2^3 \): \[ 2^3 = 8 \] Therefore: \[ V' = 8 \times 480 , \text{cm}^3 = 3840 , \text{cm}^3 \]
The volume of the figure after dilation using a scale factor of 2 is 3840 cm³.