How much grain can a farmer hold in this silo? Use [tex]\pi=3.14[/tex].

A. [tex]11,513.3 \, \text{ft}^3[/tex]
B. [tex]12,560.2 \, \text{ft}^3[/tex]
C. [tex]9,420 \, \text{ft}^3[/tex]
D. [tex]2,093.3 \, \text{ft}^3[/tex]



Answer :

To determine how much grain the farmer can hold in the silo, we need to figure out which of the given volume options corresponds to realistic dimensions for a silo, specifically focusing on the radius and height.

We know the formula for the volume [tex]\( V \)[/tex] of a cylinder is given by:

[tex]\[ V = \pi r^2 h \][/tex]

where [tex]\( r \)[/tex] is the radius and [tex]\( h \)[/tex] is the height of the cylinder.

To analyze each of the given options, let's pick an arbitrary height and check if we can get a realistic radius corresponding to that height. Suppose the height [tex]\( h \)[/tex] of the silo is 15 feet. We will compute the radius for each of the given volume options.

### Option A: [tex]\( V = 11,513.3 \, \text{ft}^3 \)[/tex]
[tex]\[ 11,513.3 = 3.14 \times r^2 \times 15 \][/tex]
[tex]\[ r^2 = \frac{11,513.3}{3.14 \times 15} \][/tex]
[tex]\[ r^2 = \frac{11,513.3}{47.1} \][/tex]
[tex]\[ r^2 \approx 244.47 \][/tex]
[tex]\[ r \approx \sqrt{244.47} \][/tex]
[tex]\[ r \approx 15.63 \, \text{ft} \][/tex]

### Option B: [tex]\( V = 12,560.2 \, \text{ft}^3 \)[/tex]
[tex]\[ 12,560.2 = 3.14 \times r^2 \times 15 \][/tex]
[tex]\[ r^2 = \frac{12,560.2}{3.14 \times 15} \][/tex]
[tex]\[ r^2 = \frac{12,560.2}{47.1} \][/tex]
[tex]\[ r^2 \approx 266.63 \][/tex]
[tex]\[ r \approx \sqrt{266.63} \][/tex]
[tex]\[ r \approx 16.33 \, \text{ft} \][/tex]

### Option C: [tex]\( V = 9,420 \, \text{ft}^3 \)[/tex]
[tex]\[ 9,420 = 3.14 \times r^2 \times 15 \][/tex]
[tex]\[ r^2 = \frac{9,420}{3.14 \times 15} \][/tex]
[tex]\[ r^2 = \frac{9,420}{47.1} \][/tex]
[tex]\[ r^2 \approx 199.79 \][/tex]
[tex]\[ r \approx \sqrt{199.79} \][/tex]
[tex]\[ r \approx 14.14 \, \text{ft} \][/tex]

### Option D: [tex]\( V = 2,093.3 \, \text{ft}^3 \)[/tex]
[tex]\[ 2,093.3 = 3.14 \times r^2 \times 15 \][/tex]
[tex]\[ r^2 = \frac{2,093.3}{3.14 \times 15} \][/tex]
[tex]\[ r^2 = \frac{2,093.3}{47.1} \][/tex]
[tex]\[ r^2 \approx 44.45 \][/tex]
[tex]\[ r \approx \sqrt{44.45} \][/tex]
[tex]\[ r \approx 6.67 \, \text{ft} \][/tex]

We have calculated the radii for each of the volume options using a height of 15 feet:

1. Option A: [tex]\( r \approx 15.63 \, \text{ft} \)[/tex]
2. Option B: [tex]\( r \approx 16.33 \, \text{ft} \)[/tex]
3. Option C: [tex]\( r \approx 14.14 \, \text{ft} \)[/tex]
4. Option D: [tex]\( r \approx 6.67 \, \text{ft} \)[/tex]

Given these radii alongside the height of 15 feet, all calculations produce results that seem reasonable for the dimensions of a typical silo. Therefore, the computed radii and the volumes are consistent.

Therefore, the amount of grain the farmer can hold in the silo is based on realistic dimensions according to the given volumes:

- Option A: [tex]\(11,513.3 \ ft^3\)[/tex]
- Option B: [tex]\(12,560.2 \ ft^3\)[/tex]
- Option C: [tex]\(9,420 \ ft^3\)[/tex]
- Option D: [tex]\(2,093.3 \ ft^3\)[/tex]

To make a more precise answer, the details provided (i.e., calculations for specific scenarios) align well. But typically, based on the computational analysis provided, it seems:

The best estimation would align with realistic silo size assumptions.

Among these, if we consider the larger volumes typically fitting a silo structure, Option A and B hold as reasonable comparisons. But since we conclude all segments work; the farmer potentially can hold [tex]$\boxed{11,513.3 \, ft^3}$[/tex] of grain in the silo.

All values are valid and feasible.