Kennedy's Ice Cream Shoppe should use the cone-shaped container, as it results in less wasted space when serving three scoops of ice cream with a diameter of 3 inches.
Let's start by calculating the volumes of the two containers: the cone and the cylinder. The container with the smaller volume will result in less wasted space when serving three scoops of ice cream with a diameter of 3 inches.
For the cone:
Given:
Diameter of the cone's base = 6.5 inches
Height of the cone = 6.5 inches
The formula for the volume V of a cone is
, where r is the radius of the base and h is the height.
First, let's find the radius of the cone's base:
Radius
inches
Now, let's calculate the volume of the cone:
![\[V_{\text{cone}} = (1)/(3) * 3.14 * 3.25^2 * 6.5\]](https://img.qammunity.org/2021/formulas/mathematics/middle-school/m4mh64xg17bz3z1mv349palmifnwpl31nu.png)
For the cylinder:
Given:
Diameter of the cylinder = 4 inches
Height of the cylinder = 9 inches
The formula for the volume V of a cylinder is
, where r is the radius of the base and h is the height.
First, let's find the radius of the cylinder:
Radius
inches
Now, let's calculate the volume of the cylinder:
![\[V_{\text{cylinder}} = 3.14 * 2^2 * 9\]](https://img.qammunity.org/2021/formulas/mathematics/middle-school/6b3y7c4a92zuq2embs1q9n6bzjjqfk4htd.png)
Let's compare the volumes of the two containers to determine which one has less wasted space when serving three scoops of ice cream.
For the cone:
![\[V_{\text{cone}} = (1)/(3) * 3.14 * 3.25^2 * 6.5\]](https://img.qammunity.org/2021/formulas/mathematics/middle-school/m4mh64xg17bz3z1mv349palmifnwpl31nu.png)
![\[V_{\text{cone}} \approx 70.22 \text{ cubic inches}\]](https://img.qammunity.org/2021/formulas/mathematics/middle-school/6viv4n4hewximroet0l5878kshdynde8me.png)
For the cylinder:
![\[V_{\text{cylinder}} = 3.14 * 2^2 * 9\]](https://img.qammunity.org/2021/formulas/mathematics/middle-school/6b3y7c4a92zuq2embs1q9n6bzjjqfk4htd.png)
![\[V_{\text{cylinder}} = 3.14 * 4 * 9\]](https://img.qammunity.org/2021/formulas/mathematics/middle-school/i0p5tca6a84ujy8terxw7ddj0pv0r0t6ds.png)
![\[V_{\text{cylinder}} = 113.04 \text{ cubic inches}\]](https://img.qammunity.org/2021/formulas/mathematics/middle-school/chweu4wkxaz6v2te8wyfv6vgxm17prgth8.png)
Comparing the volumes:
The cone's volume is approximately 70.22 cubic inches, while the cylinder's volume is 113.04 cubic inches.
Therefore, the cone would result in less wasted space when serving three scoops of ice cream with a diameter of 3 inches. Kennedy's Ice Cream Shoppe should use the cone-shaped container.