A cylindrical recycling container has a height of 76 centimeters, but the radius is unknown. Find the radius if the container has a volume of 600,000 cm3 . Round your answer to the nearest whole number.(1 point)

The radius is about
cm.

1 answer

To find the radius of the cylindrical recycling container, 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,
  • \( h \) is the height, and
  • \( \pi \) is a constant approximately equal to 3.14159.

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

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

Given:

  • Volume \( V = 600,000 , \text{cm}^3 \)
  • Height \( h = 76 , \text{cm} \)

Now substitute the values into the equation:

\[ r = \sqrt{\frac{600,000}{\pi \times 76}} \]

First, calculate \( \pi \times 76 \):

\[ \pi \times 76 \approx 3.14159 \times 76 \approx 238.76164 \]

Next, calculate \( \frac{600,000}{238.76164} \):

\[ \frac{600,000}{238.76164} \approx 2512.566 \]

Now take the square root:

\[ r \approx \sqrt{2512.566} \approx 50.12 \]

Rounding to the nearest whole number, the radius \( r \) is approximately:

\[ \boxed{50} , \text{cm} \]