Use the image to answer the question.

A rectangular prism measures 3 meters in width, 4 meters in length, and 2 meters in height.

Determine the volume of the rectangular prism if it were dilated using a scale factor of 4.

(1 point)
Responses

1,536 m3
1,536 m cubed

384 m3
384 m cubed

96 m3
96 m cubed

6 m3
6 m cubed
Skip to navigation

page 14 of 14

1 answer

To determine the volume of a rectangular prism, you can use the formula:

\[ \text{Volume} = \text{width} \times \text{length} \times \text{height} \]

  1. Original dimensions of the rectangular prism:

    • Width = 3 meters
    • Length = 4 meters
    • Height = 2 meters
  2. Calculate the original volume: \[ \text{Volume}_{\text{original}} = 3 , \text{m} \times 4 , \text{m} \times 2 , \text{m} = 24 , \text{m}^3 \]

  3. Dilation with a scale factor of 4: When dilated by a scale factor \( k \), each dimension is multiplied by \( k \). Therefore, the new dimensions will be:

    • New Width = \( 3 , \text{m} \times 4 = 12 , \text{m} \)
    • New Length = \( 4 , \text{m} \times 4 = 16 , \text{m} \)
    • New Height = \( 2 , \text{m} \times 4 = 8 , \text{m} \)
  4. Calculate the volume of the dilated prism: \[ \text{Volume}_{\text{dilated}} = 12 , \text{m} \times 16 , \text{m} \times 8 , \text{m} = 1536 , \text{m}^3 \]

Thus, the volume of the rectangular prism after dilation by a scale factor of 4 is 1,536 m³.

The correct response is 1,536 m³.