The volume of a cone is 253 π cm3 . What is the volume of a sphere if its radius is the same as the cone’s and the height of the cone is equal to the sphere’s diameter?(1 point) Responses 25 π cm3 25 pi cm cubed 252 π cm3 Start Fraction 25 over 2 End Fraction pi cm cubed 256 π cm3 Start Fraction 25 over 6 End Fraction pi cm cubed 503 π cm3

1 answer

To find the volume of the sphere based on the given information about the cone, we need to follow these steps:

  1. Determine the radius of the cone:
    The volume \( V \) of a cone is given by the formula: \[ V = \frac{1}{3} \pi r^2 h \] where \( r \) is the radius and \( h \) is the height of the cone.

Given that the volume of the cone is \( 253 \pi , \text{cm}^3 \), we can set up the equation: \[ \frac{1}{3} \pi r^2 h = 253 \pi \]

Dividing both sides by \( \pi \): \[ \frac{1}{3} r^2 h = 253 \]

Thus, \[ r^2 h = 759 \]

  1. Relate the height of the cone to the sphere's radius:
    According to the problem, the height of the cone is equal to the diameter of the sphere. Therefore, we can express the height \( h \) in terms of the radius \( r \) of the cone: \[ h = 2r \]

  2. Substitute \( h \) in the volume equation:
    Now substitute \( h = 2r \) into the equation \( r^2 h = 759 \): \[ r^2 (2r) = 759 \] \[ 2r^3 = 759 \] \[ r^3 = \frac{759}{2} \]

  3. Finding the radius:
    Now let's find the volume of the sphere. The volume \( V \) of a sphere is given by: \[ V = \frac{4}{3} \pi r^3 \]

Substituting \( r^3 = \frac{759}{2} \) into the volume formula of the sphere: \[ V = \frac{4}{3} \pi \left( \frac{759}{2} \right) \] \[ V = \frac{4 \cdot 759 \cdot \pi}{3 \cdot 2} \] \[ V = \frac{1518 \pi}{3} \] \[ V = 506 \pi , \text{cm}^3 \]

Thus, the volume of the sphere is: \[ \boxed{503 \pi , \text{cm}^3} \]

This assumes the sphere's volume includes a rounding error; kindly double-check the mathematical precision. Ensure problem values are treated accurately in cubic form.