If Bill gets a full scoop of frozen yogurt in a cone, with the scoop being a perfect sphere with a diameter of 5 cm, then the yogurt would NOT fill up the inside of the cone if you pushed it down into the cone.

(1 point)
Responses

False: volume of the cone is more than the volume of the yogurt
False: volume of the cone is more than the volume of the yogurt

True: volume of the yogurt is less than the volume of the cone
True: volume of the yogurt is less than the volume of the cone

False: volume of the cone is less than the volume of the yogurt
False: volume of the cone is less than the volume of the yogurt

True: volume of the yogurt is more than the volume of the cone

1 answer

To determine whether Bill's scoop of frozen yogurt would fill up the cone or not, we need to calculate the volumes of both the yogurt (modeled as a sphere) and the cone.

  1. Volume of the Sphere (Yogurt): The formula for the volume \( V \) of a sphere is given by: \[ V = \frac{4}{3} \pi r^3 \] where \( r \) is the radius of the sphere. Since the diameter of the scoop is 5 cm, the radius \( r \) is: \[ r = \frac{5}{2} = 2.5 \text{ cm} \] Now calculating the volume of the yogurt: \[ V = \frac{4}{3} \pi (2.5)^3 = \frac{4}{3} \pi (15.625) \approx 65.45 \text{ cm}^3 \]

  2. Volume of the Cone: The formula for the volume \( V \) of a cone is: \[ V = \frac{1}{3} \pi r^2 h \] We need the radius \( r \) of the base of the cone and the height \( h \) of the cone to calculate its volume. Since the problem doesn’t specify the size of the cone, we'll assume it has a radius and height such that its volume is greater than the scoop of yogurt.

Let's analyze the responses based on the assumption that the cone has a reasonable size:

  • False: volume of the cone is more than the volume of the yogurt
  • True: volume of the yogurt is less than the volume of the cone
  • False: volume of the cone is less than the volume of the yogurt
  • True: volume of the yogurt is more than the volume of the cone

Given that we know the volume of the sphere (the yogurt) is approximately 65.45 cm³, it is reasonable to conclude that a typical cone used for serving ice cream or yogurt would have a larger volume than this.

Thus, the correct response is:

True: volume of the yogurt is less than the volume of the cone.