The volume of a right circular cylinder is 27,355.68 mm. 3

. Find the height of the cylinder if the radius is 22 mm. Use 3.14 for π
.

Round your answer to the nearest whole number.

(1 point)

mm.

whole number

1 answer

The volume \( V \) of a right circular cylinder can be calculated using the formula:

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

where:

  • \( V \) is the volume,
  • \( r \) is the radius,
  • \( h \) is the height,
  • and \( \pi \) is approximately 3.14.

Given:

  • \( V = 27,355.68 , \text{mm}^3 \)
  • \( r = 22 , \text{mm} \)
  • \( \pi \approx 3.14 \)

We can rearrange the formula to solve for \( h \):

\[ h = \frac{V}{\pi r^2} \]

First, we need to calculate \( r^2 \):

\[ r^2 = 22^2 = 484 , \text{mm}^2 \]

Now we can calculate the volume formula:

\[ V = \pi r^2 h \implies h = \frac{V}{\pi r^2} = \frac{27,355.68}{3.14 \times 484} \]

Now calculate \( 3.14 \times 484 \):

\[ 3.14 \times 484 = 1,519.76 \]

Now substitute this value back to find \( h \):

\[ h = \frac{27,355.68}{1,519.76} \approx 17.99 \]

Rounding to the nearest whole number gives:

\[ h \approx 18 , \text{mm} \]

Thus, the height of the cylinder is approximately 18 mm.