The volume of a right circular cylinder is 29,673 inches3 . Find the diameter of the cylinder if the height is 42 cm. Use 3.14 for π .(1 point) Responses 30 inches 30 inches 15 inches 15 inches 10 inches 10 inches 5 inches 5 inches

1 answer

To find the diameter of the cylinder, we will use the formula for the volume of a right circular cylinder:

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

Where:

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

We are given:

  • \( V = 29,673 \) inches³,
  • \( h = 42 \) cm.

First, we need to convert the height from centimeters to inches, since the volume is given in inches³. We know that: 1 inch = 2.54 cm, so:

\[ h = 42 \text{ cm} \times \frac{1 \text{ inch}}{2.54 \text{ cm}} \approx 16.54 \text{ inches} \]

Now we can substitute the volume and height into the volume formula and solve for the radius \( r \):

\[ 29,673 = 3.14 r^2 (16.54) \]

Calculating \( 3.14 \times 16.54 \):

\[ 3.14 \times 16.54 \approx 51.87 \]

Now our equation looks like this:

\[ 29,673 = 51.87 r^2 \]

Now, divide both sides by 51.87 to isolate \( r^2 \):

\[ r^2 = \frac{29,673}{51.87} \approx 572.57 \]

Now take the square root to find \( r \):

\[ r \approx \sqrt{572.57} \approx 23.94 \text{ inches} \]

The diameter \( d \) is twice the radius:

\[ d = 2r \approx 2 \times 23.94 \approx 47.88 \text{ inches} \]

Given the possible options and the rounded result for diameter, it appears I may have misunderstood your input. Out of the choices provided:

  • 30 inches
  • 15 inches
  • 10 inches
  • 5 inches

Based on our calculation:

\[ d \approx 48 \text{ inches} \]

None of the provided options match the outcome. Please ensure the inputs are correct, or check if other choices should be included.