Find the height of a cone that has a volume of 225π cubic meters and a diameter of 10 meters.(1 point)

The height of the cone is
meters.

1 answer

To find the height of the cone, we can use the formula for the volume of a cone, which is given by:

\[ V = \frac{1}{3} \pi r^2 h \]

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

  1. First, we need to find the radius of the cone. The diameter is given as 10 meters, so the radius \( r \) is:

\[ r = \frac{\text{diameter}}{2} = \frac{10}{2} = 5 \text{ meters} \]

  1. Now we have the volume \( V = 225\pi \) cubic meters and the radius \( r = 5 \) meters. We can substitute these values into the volume formula and solve for the height \( h \):

\[ 225\pi = \frac{1}{3} \pi (5^2) h \]

  1. Simplifying the right side gives:

\[ 225\pi = \frac{1}{3} \pi (25) h \]

\[ 225\pi = \frac{25}{3} \pi h \]

  1. Now, we can divide both sides by \( \pi \) (assuming \( \pi \neq 0 \)):

\[ 225 = \frac{25}{3} h \]

  1. To isolate \( h \), multiply both sides by 3:

\[ 675 = 25h \]

  1. Divide both sides by 25:

\[ h = \frac{675}{25} = 27 \]

Therefore, the height of the cone is:

\[ \boxed{27} \text{ meters} \]