Questions: The dimensions of a rectangular shipping crate are 2.5 ft., 2.5 ft., and 4 ft. If there were a similar shipping crate with a scale factor of 3, what would be the volume of the new shipping crate? (1 point)
225 ft^3
75 ft^3
25 ft^3
675 ft^3
Transcript text: The dimensions of a rectangular shipping crate are 2.5 ft ., 2.5 ft ., and 4 ft . If there were a similar shipping crate with a scale factor of 3 , what would be the volume of the new shipping crate? (1 point)
$225 \mathrm{ft}^{3}{ }^{3}$
$75 \mathrm{ft}^{3}$
$25 \mathrm{ft}^{3}{ }^{3}$
$675 \mathrm{ft}^{3}{ }^{3}$
Solution
Solution Steps
Step 1: Identify the dimensions of the original crate
The original crate has dimensions of \( 2.5 \, \text{ft} \), \( 2.5 \, \text{ft} \), and \( 4 \, \text{ft} \).
Step 2: Calculate the volume of the original crate
The volume \( V \) of a rectangular prism is given by:
\[
V = \text{length} \times \text{width} \times \text{height}
\]
Substituting the given dimensions:
\[
V = 2.5 \times 2.5 \times 4 = 25 \, \text{ft}^3
\]
Step 3: Apply the scale factor to find the volume of the new crate
The scale factor is \( 3 \). Since volume scales with the cube of the scale factor, the new volume \( V' \) is:
\[
V' = V \times (\text{scale factor})^3
\]
Substituting the values:
\[
V' = 25 \times 3^3 = 25 \times 27 = 675 \, \text{ft}^3
\]