The image depicts a cylindrical glass, partially filled with a blue liquid. The glass has a height of 13 mm and a diameter of 8 mm. The liquid fills the bottom portion of the glass, reaching a height that is not specified. The image is likely intended to represent a geometric problem involving calculating the volume or surface area of the liquid or the glass.

Find the volume of the cylinder, in cubic millimeters. Round your answer to the nearest hundredth.

(1 point)
cubic millimeters

1 answer

To calculate the volume of a cylinder, we use the formula:

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

where:

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

Given the diameter of the glass is 8 mm, the radius \( r \) can be calculated as follows:

\[ r = \frac{\text{diameter}}{2} = \frac{8 \text{ mm}}{2} = 4 \text{ mm} \]

The height of the cylinder \( h \) is given as 13 mm. Now we can plug in the values into the volume formula:

\[ V = \pi (4 \text{ mm})^2 (13 \text{ mm}) \]

Calculating the area of the base:

\[ (4 \text{ mm})^2 = 16 \text{ mm}^2 \]

Now substitute this back into the volume formula:

\[ V = \pi (16 \text{ mm}^2)(13 \text{ mm}) = \pi (208 \text{ mm}^3) \]

Now, using the approximate value of \( \pi \approx 3.14159 \):

\[ V \approx 3.14159 \times 208 \approx 652.12 \text{ mm}^3 \]

Rounding to the nearest hundredth, the volume of the cylinder is:

\[ \boxed{652.12} \text{ cubic millimeters} \]