Volume of Cylinders Quick Check

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Question
A water tower has a height of 25 meters and a width of 16 meters. What is the volume of the water tower? Use 3.14 for pi.(1 point)
Responses

7,850 cubic meters
7,850 cubic meters

5,024 cubic meters
5,024 cubic meters

20,096 cubic meters
20,096 cubic meters

15,700 cubic meters

1 answer

To find the volume of the water tower, which is shaped like a cylinder, we can use the formula for the volume of a cylinder:

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

where:

  • \( V \) is the volume,
  • \( r \) is the radius, and
  • \( h \) is the height.

Given:

  • The height \( h = 25 \) meters,
  • The diameter (width) is \( 16 \) meters, so the radius \( r \) is half of that:

\[ r = \frac{16}{2} = 8 \text{ meters} \]

Now, substituting the values into the formula. Using \( \pi = 3.14 \):

\[ V = 3.14 \times (8)^2 \times 25 \]

Calculating \( (8)^2 \):

\[ (8)^2 = 64 \]

So,

\[ V = 3.14 \times 64 \times 25 \]

Calculating \( 64 \times 25 \):

\[ 64 \times 25 = 1600 \]

Now substituting that back into the volume formula:

\[ V = 3.14 \times 1600 \]

Calculating \( 3.14 \times 1600 \):

\[ V = 5024 \]

Thus, the volume of the water tower is 5,024 cubic meters.

The correct response is:

5,024 cubic meters.