A square prism and a cylinder have the same height. The area of the cross-section of the square prism is 314 square units, and the area of the cross-section of the cylinder is [tex]$50 \pi$[/tex] square units. Based on this information, which argument can be made?

A. The volume of the square prism is [tex]\frac{1}{3}[/tex] the volume of the cylinder.
B. The volume of the square prism is half the volume of the cylinder.
C. The volume of the square prism is equal to the volume of the cylinder.
D. The volume of the square prism is twice the volume of the cylinder.



Answer :

To determine which argument can be made about the volumes of the square prism and the cylinder, we need to compare their volumes. Here’s a detailed, step-by-step solution:

1. Determine the volume of the square prism:
- The volume [tex]\( V_{\text{square prism}} \)[/tex] of the square prism is given by the product of the area of its cross-section and its height.
- Given that the area of the cross-section of the square prism is 314 square units, let’s assume the height [tex]\( h \)[/tex] is 1 unit (as the actual value does not impact the ratio).
- Therefore, [tex]\( V_{\text{square prism}} = \text{Area}_{\text{square prism}} \times h = 314 \times 1 = 314 \)[/tex] cubic units.

2. Determine the volume of the cylinder:
- The volume [tex]\( V_{\text{cylinder}} \)[/tex] of the cylinder is given by the product of the area of its cross-section and its height.
- The area of the cross-section of the cylinder is given as [tex]\( 50\pi \)[/tex] square units, with the same assumed height [tex]\( h = 1 \)[/tex] unit.
- Therefore, [tex]\( V_{\text{cylinder}} = \text{Area}_{\text{cylinder}} \times h = 50\pi \times 1 = 50\pi \approx 157.07963267948966 \)[/tex] cubic units.

3. Calculate the volume ratio:
- The ratio of the volume of the square prism to the volume of the cylinder is given by:
[tex]\[ \text{Volume Ratio} = \frac{V_{\text{square prism}}}{V_{\text{cylinder}}} = \frac{314}{50\pi} \][/tex]
Simplifying further using the approximation [tex]\( \pi \approx 3.141592653589793 \)[/tex]:
[tex]\[ \text{Volume Ratio} \approx \frac{314}{157.07963267948966} \approx 1.9989860852342054 \][/tex]

4. Interpret the volume ratio:
- The ratio of the volumes [tex]\( 1.9989860852342054 \)[/tex] is very close to 2.
- This means that the volume of the square prism is approximately twice the volume of the cylinder.

Therefore, based on the given cross-sectional areas and the volumes derived, the correct argument is:
The volume of the square prism is twice the volume of the cylinder.